I just checked my own folder and there aren't any special permissions defined on that folder; everything is inherited from Program Files, which is what you should get back to. If you can't see permissions then you can do the following to regain access and re-establish the default permissions:
- Logged in as an admin, right-click the Macrium folder, go to Properties > Security. Click Advanced, then click "Change" next to the owner name at the top. Enter "Administrators", click OK, check the "Replace owner on subcontainers" checkbox, then click OK. Click OK in the previous folder properties pane as well.
- Now go back into the Advanced security settings and click "Change permissions" at the bottom. If you see a button that says "Enable
inheritance", click it. If it already says "Disable
inheritance", then leave it alone. Then remove any permissions entries whose "Inherited from" field does NOT say "C:\Program Files". It should end up looking like the screenshot below, perhaps in a different order. When you've got it right, change the owner above back to "SYSTEM", then check the "Replace owner on subcontainers" checkbox and
the "Replace all child object permissions entries" checkbox, and click OK.