Hello community

I set up a backup on my computer, but I'm getting a reading error in the log file. Macrium Reflect cannot access files because they are being used by another process. The pc is currently running Windows 10 Pro 64-bit (without the annyversary update).

I edited the log a little bit for privacy reasons. I replaced my username with %username%, my E-Mail Adress with "privateEmailAdress" and the german error with the english one. The german error is: "Der Prozess kann nicht auf die Datei zugreifen, da sie von einem anderen Prozess verwendet wird." and I replaced it with: "The process cannot access the file because it is being used by another process."

Here's the full log:

Backup ID - CD7082DFCBF0AFA0

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Backup Summary

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	Backup Definition File:	C:\Users\%username%\Documents\Reflect\File Backup.xml
	Auto Verify:	Y
	Maximum File Size:	Automatic
	Compression:	None
	Password:	N
	NTFS Permissions:	Y
	Folder Reparse Points:	Follow user reparse points, follow system reparse points
	Backup set matching:	Similar - Match on backups with at least one matching folder
	Power Saving:	N

---

Destination:
	Backup Type:	Full
	File Name:	\\192.168.30.50\%username%\Macrium Reflect\File_Backup\CD7082DFCBF0AFA0-00-00.mrbak

---

	Folder:	C:\Users\%username%\
	Include File Filter:	*.*
	Exclude File Filter:
	Include Sub Folders:	Y
	Exclude Folder Filter:
	Exclude Hidden Files:	N
	Exclude System Files:	N

---

	Folder:	C:\CashMan Client\
	Include File Filter:	*.*
	Exclude File Filter:
	Include Sub Folders:	Y
	Exclude Folder Filter:
	Exclude Hidden Files:	N
	Exclude System Files:	N

---

	Email On Success:	Y
	Recipients:	privateEmailAdress
	Email On Failure:	Y
	Recipients:	privateEmailAdress

---

	Creating Volume Snapshot - Please Wait
Volume Snapshots Created
	C:\	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12
Starting Backup - Wednesday, August 24, 2016 08:20:01
	Destination Drive:	Free Space 1.75 TB
	Free space threshold:	Delete oldest backup sets when free space is less than 5.00 GB
	Determining files to copy
	Total Number of Files:	39592
	Total Size:	43.77 GB
Copying files
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Microsoft\Windows\WebCache\V01.log
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Microsoft\Windows\WebCache\V01tmp.log
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Microsoft\Windows\WebCache\WebCacheV01.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Microsoft\Windows\UsrClass.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Microsoft\Windows\UsrClass.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Microsoft\Windows\UsrClass.dat.LOG2
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat.LOG2
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Microsoft.Windows.ShellExperienceHost_10.0.10586.0_neutral_neutral_cw5n1h2txyewy\ActivationStore\ActivationStore.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Settings\settings.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Settings\settings.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Settings\settings.dat.LOG2
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\TileDataLayer\Database\EDB.log
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\TileDataLayer\Database\vedatamodel.edb
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Microsoft\Windows\WebCache\V01.log
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Microsoft\Windows\WebCache\V01tmp.log
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Microsoft\Windows\WebCache\WebCacheV01.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Microsoft\Windows\UsrClass.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Microsoft\Windows\UsrClass.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Microsoft\Windows\UsrClass.dat.LOG2
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat.LOG2
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Microsoft.Windows.ShellExperienceHost_10.0.10586.0_neutral_neutral_cw5n1h2txyewy\ActivationStore\ActivationStore.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Settings\settings.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Settings\settings.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Settings\settings.dat.LOG2
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\TileDataLayer\Database\EDB.log
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\TileDataLayer\Database\vedatamodel.edb
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Microsoft\Windows\WebCache\V01.log
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Microsoft\Windows\WebCache\V01tmp.log
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Microsoft\Windows\WebCache\WebCacheV01.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Microsoft\Windows\UsrClass.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Microsoft\Windows\UsrClass.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Microsoft\Windows\UsrClass.dat.LOG2
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat.LOG2
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Microsoft.Windows.ShellExperienceHost_10.0.10586.0_neutral_neutral_cw5n1h2txyewy\ActivationStore\ActivationStore.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Settings\settings.dat
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Settings\settings.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\Settings\settings.dat.LOG2
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\TileDataLayer\Database\EDB.log
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\Lokale Einstellungen\TileDataLayer\Database\vedatamodel.edb
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\NTUSER.DAT
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\ntuser.dat.LOG1
		The process cannot access the file because it is being used by another process.
	Error Reading:	\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\ntuser.dat.LOG2
		The process cannot access the file because it is being used by another process.
	WARNING - Some Files Not Copied - Check the log for details
	Saving cluster information
	Saving Index
	New File: 54 GB	CD7082DFCBF0AFA0-00-00.mrbak
	Verifying 'CD7082DFCBF0AFA0-00-00.mrbak'
	Ok. Continuing...

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Retention Rules
		Rules will be applied to all matching backup sets in the destination folder
	Full:	Retain 4 full backups
		Linked incremental and differential backups will also be deleted
	Backup Sets:	1 sets found
		Nothing to delete

---

Backup and Verification Completed in 00:58:48. Some files were not copied. See log for full details

Hello,

A third party application appears to be interfering with Reflect and stopping the access of the files . Can you please try a Windows 'Clean boot' to help isolate the cause, as described here:

http://support.microsoft.com/kb/929135

It should not be a problem as the F&F back up still completes but the above procedure should clear up the issue. 

Kind Regadrs
Daniel.

Thanks for your help, but sadly I now did a clean boot but I still get the same error.

Check Reflect's VSS log for that backup operation to see if it provides more specific VSS error information.  If so, have you tried Reflect's "Fix VSS Problems" utility as per this KB article?  Additional VSS troubleshooting suggestions and links are provided in this KB article.  Run the command "vssadmin list writers" at an elevated command prompt for a list of VSS writers with their current state and last error.


Regards, Richard V. ("Arvy")

I already tried the "Fix VSS Problems" utility. Also some questions/notes to the second KB article:

1. I ran the command 'vssadmin list writers' but no VSS writer ever had an error.
2. I went through all error messages in the event viewer from today, couldn't find anything relating to 'VSS', 'Shadow Copy' or 'VolSnap'. I searched in 'Event Viewer' > 'Windows Logs' > 'Application'
3. VSS service is set to 'manual'. On other PCs with Macrium Reflect, everything works fine when this service is set to manual. Also i changed this service to automatic before I wrote a topic in this forum, but it didnt' work so I changed it back to manual.
4. Is the software 'VSSfix 64bit' which you can download in this KB article the same as the one provided in the Macrium Reflect Software (the 'Fix VSS Problems' utility)? If so I don't necessarily need to re-register the VSS components with this Batch-File, or should I do it anyway?

Just as an additional note, I had Acronis previously installed on this computer, but removed it and cleaned everything up with their CleanUp Tool. On other PCs everything works fine and they also had installed Acronis previously, just this PC creates that error.

I get the VSS log always with the E-Mail when the backup succeeded/failed. I checked the log but couldnt find any error. I post it here, maybe you see something unusual:

(Gathering writer metadata...)
(Waiting for the asynchronous operation to finish...)
Initialize writer metadata ...
- Get exclude files
- Enumerate components
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get exclude files
- Enumerate components
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get exclude files
- Enumerate components
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get exclude files
- Enumerate components
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get exclude files
- Enumerate components
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get exclude files
- Enumerate components
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get exclude files
- Enumerate components
- Get exclude files
- Enumerate components
- Get file list descriptors
- Get database descriptors
- Get log descriptors
- Get exclude files
- Enumerate components
- Get exclude files
- Enumerate components
- Get file list descriptors
- Get database descriptors
- Get log descriptors
Discover directly excluded components ...
- Excluding writer '' since it has no selected components for restore.
- Excluding writer '' since it has no selected components for restore.
- Excluding writer 'Shadow Copy Optimization Writer' since it has no selected components for restore.
- Excluding writer 'MSSearch Service Writer' since it has no selected components for restore.
Discover components that reside outside the shadow set ...
Discover all excluded components ...
Discover excluded writers ...
Discover explicitly included components ...
Verifying explicitly specified writers/components ...
Select explicitly included components ...
* Writer 'Task Scheduler Writer':
 - Add component \TasksStore
* Writer 'VSS Metadata Store Writer':
 - Add component \WriterMetadataStore
* Writer 'Performance Counters Writer':
 - Add component \PerformanceCounters
* Writer 'Registry Writer':
 - Add component \Registry
* Writer 'MSMQ Writer (MSMQ)':
 - Add component \config
 - Add component \storage
* Writer 'COM+ REGDB Writer':
 - Add component \COM+ REGDB
* Writer 'WMI Writer':
 - Add component \WMI
* Writer 'IIS Config Writer':
 - Add component \IISCONFIG
Creating shadow set {a0d35893-9f22-41ff-87eb-ea8b60770128} ...
- Adding volume \\?\Volume{ad714f0f-d73b-11e1-bf91-806e6f6e6963}\ [C:\] to the shadow set...
Preparing for backup ...
(Waiting for the asynchronous operation to finish...)
(Waiting for the asynchronous operation to finish...)
Creating the shadow (DoSnapshotSet) ...
(Waiting for the asynchronous operation to finish...)
(Waiting for the asynchronous operation to finish...)
Shadow copy set succesfully created.
Saving the backup components document ...

List of created shadow copies:


Querying all shadow copies with the SnapshotSetID {a0d35893-9f22-41ff-87eb-ea8b60770128} ...

* SNAPSHOT ID = {a87aa005-48b6-4d4f-8877-00ff141b8251} ...
 - Shadow copy Set: {a0d35893-9f22-41ff-87eb-ea8b60770128}
 - Original count of shadow copies = 1
 - Original Volume name: \\?\Volume{ad714f0f-d73b-11e1-bf91-806e6f6e6963}\ [C:\]
 - Creation Time: 25.08.2016 12:11:54
 - Shadow copy device name: \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy13
 - Originating machine: HOME
 - Service machine: HOME
 - Not Exposed
 - Provider id: {b5946137-7b9f-4925-af80-51abd60b20d5}
 - Attributes: Auto_Release Differential

Perhaps I should mention first that I'm just a fellow user and have no special knowledge about Relect's "built-in" functions.  So I'm not able to say whether its "Fix VSS Problems" menu option does or doesn't do all the same things as the downloadable 'VSSfix 64bit' utility.  I suspect the latter may include some additional steps, but that's just a guess.  It's up to you to decide if it's worth trying.  It does seem reasonably clear, however, that VSS shadow copy access failure is at the root of the issue you're seeing.

The only thing I notice in the log that looks somewhat suspicious to me are those two "nameless" exclusion lines (Excluding writer '') where it appears to be trying to exclude something that can't be properly identified.  Explaining their precise significance, however, would require someone with knowledge in greater depth than I possess.

As a former Acronis TI user myself, I can only say that getting rid of all its "leftovers" isn't always easy, especially in the case of its drive and volume device class filters, but they shouldn't normally interfere with other VSS functions even if they are left behind.  Having said that, there are exceptions to every rule, of course, and Windows own "Disk Clean-up" utility accomplishes nothing at all for that issue.

Other than that, I guess the only other suggestion I can offer would be to open a direct support ticket request that includes a link to this forum topic.


Regards, Richard V. ("Arvy")

I am a recovering ATI user as well...;-). I used a utility called IObit Uninstaller to ensure all the ATI code was removed from my system when I made the switch. Don't think it will help with your VSS issue but it does do a good job of completely uninstalling software. The free version is all you need.

There is one other point that I neglected to mention in my earlier reply.  Windows updates use VSS to create restore points amongst other things.  So if your Reflect backup operation happens to coincide with a background Windows update process (which isn't always apparent) the VSS usage by the former can interfere with its usage by the latter.  If that's what happened, it should not recur after the Windows update is complete and the system has been rebooted.  Probably irrelevant in your case since you also got a bad result with a clean boot.

Regards, Richard V. ("Arvy")

Thank you all very much for your help!

The User probably gets a new SSD soon with a new Windows 10 Installation, so I hope that the problems will dissapear after the fresh installation In case he doesnt get a new SSD, I will open a support ticket.

I've been browsing, and I'm pulling this thread back to the top of the pile because no solution was found and it shows a fundamental troubleshooting methodology failure. Learning how to troubleshoot makes life much easier. Reading and understanding error messages is a prime requirement.

Juarx, who originated this thread, provided a long list of error messages, like this one:

"\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Anwendungsdaten\Microsoft\Windows\WebCache\V01.log"

None of the replies mentions these error messages, even though VSS is doing it's best to point out exactly where the error occurs. In the case of the example above, Windows  has control (using) of a file called V01.log.

In another, the error location is shows exactly which application is involved and what file VSS wants to copy:

"\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy12\Users\%username%\AppData\Local\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\Settings\settings.dat"

Several other error messages identify other files and processes preventing VSS from copying files.

Rather than blindly guessing about what "could" be the problem, wouldn't it be better to follow the clues provided, and use the tools available to find the cause? (The tools cited below are available on all Windows systems after XP.)

Using the Windows Resource monitor (%windir%\system32\perfmon.exe /res) will show exactly what Windows applications are doing.
Using Sysinternals/Process Explorer (https://technet.microsoft.com/en-us/sysinternals/processexplorer.aspx) also provides detailed information on system operation including listing the threads and files each process is using.

However, just a brief glance at the error list reveals that Windows Cortana is running in the background, probably doing routine housework (or that Juarx doesn't know not to run other applications when doing drive maintenance—and also doesn't realize that the files omitted from the VSS shadow copy are not exactly crucial files because anything in an AppData folder is a setting or a log).

The lesson here is to look for the actual problem, not try random solutions.

Tony