System Restore in Dual Boot Environment


  1. dlwmacgregor
    Posts : 207
    Windows 10 Pro 64-bit v.1909
       New #1

    System Restore in Dual Boot Environment


    I have noticed during those times when I have needed to resort to System Restore to fix a problem, either the System Restore failed or the Restore Points I had created previously were gone.
    When I am in the System Protection (System Restore) window for Windows 7, my boot drive status is On and the drive for my Windows 10 drive is Off.
    The reverse is true when I boot into Windows 10 - the boot drive for Win 10 is On, while the drive for Win 7 is Off.
    I suspect that each time I boot into one OS it is deleting the Restore Point for the other OS (separate drives) simply because it is set to Off for the drive I am NOT booting from.
    Could this be the cause and is the remedy to "disable" the drive of the non-active OS?
    My reasoning is - if the active OS can't "see" the other OS drive, it can't delete the Restore Point(s) that are on it.
    Sound reasonable?
    System Restore in Dual Boot Environment-system-restore-win-10.jpg
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  3. dalchina
    Posts : 42,984
    Win 10 Pro (22H2) (2nd PC is 22H2)
       New #2

    The loss of restore points in a dual boot configuration is a widely experienced issue, from XP/Vista onwards.
    Some have managed to overcome the problem.

    Detailed discussion here, which may help:
    Win10 System Restore points disappear whenever I boot to Win7
    Discussion here about hiding drives and whether one OS is 'visible' from the other:
    Solved No System Restore points
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  4. mud4evr
    Posts : 2
    10 Pro : 10.0.18363 64 bit
       New #3

    I have a similar problem on my dual boot (with two separate HD) Windows 7 and Windows 10. My problem is that when I boot to Windows 10 and check System Restore previous Restore Points are gone and Disk Space Usage is 0 despite the Max set at 24g.
    I did the fix (above) and added Offline key on Windows 7 regedit pointing to the "W" letter where the Windows 10 exists, but this did not change anything. So I'm still in need of a solution as to why my Windows 10 keeps eliminating restore points.
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  6. dalchina
    Posts : 42,984
    Win 10 Pro (22H2) (2nd PC is 22H2)
       New #4

    If you care to search this forum for e.g.
    dual boot system restore points lost
    you will find a number of threads discussing this. It's a long term Windows issue pre Win 10.

    E.g.
    System Restore in Dual Boot Environment
    System Restore in Dual Boot Environment-1.jpg

    There are also plenty of lengthy discussions about people experiencing loss of restore points when they are not dual booting. And bear in mind that using a restore point is often unsuccessful. A good number of people have given up and certainly don't rely on them. Great when they work (and I have one created daily automatically). Note MS turns SR off on each upgrade.
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