VSS (Volume Shadow Copy Service) writes issue

Vítězslav Herman 0 Reputation points
2025-07-09T06:44:28.6866667+00:00

Hi, sorry for delay, I would like to continue in discuss about this issue

https://learn.microsoft.com/en-us/answers/questions/3863521/vss-(volume-shadow-copy-service)-writes-issue?forum=windows-windows_10-other_settings&referrer=answers

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Hi, I use Acronis True Image for backuping my PC and now I started to having issue -

"There is not enough space on the volume where the snapshot storage is located"

Acronis support wrote me:

Since you're attempting to create a full PC backup, it requires a significant amount of storage space. It appears you're encountering storage-related issues. I recommend trying a disk-level backup for each individual backup present in your system to see if the issue persists.

Additionally, based on the screenshots and logs you provided, the issue seems to be related to VSS (Volume Shadow Copy Service) writers. As this is a Windows system component, I recommend contacting Microsoft Support to resolve the VSS writer issue. Once resolved, you should be able to proceed with backups successfully.

I am adding screenshot from the Acronis Disk Director.

How can I rise that?


we ended on

you said:

"Please run these commands:

takeown /f "Y:\System Volume Information" /r /d y

icacls "Y:\System Volume Information" /grant *S-1-5-32-544:F /t /c

rd /s /q "Y:\System Volume Information"

Once done, redo the steps listed in that Microsoft article."

so I did, then I went back to this page, as you said in that article and I got stuck on part 11.

https://support.microsoft.com/en-us/topic/-we-couldn-t-update-system-reserved-partition-error-installing-windows-10-46865f3f-37bb-4c51-c69f-07271b6672ac

"Type whoami and press Enter, and then record the user name. Type the following command and press Enter: icacls . /grant <username you got from whoami>:F /t

Note: Do not put a space between the username and ":F", or the command won't work."

it writes "access denied"

příkaz 11 - MS návod - bug

Windows for home | Windows 10 | Files, folders, and storage
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  1. Ramesh Srinivasan 88,105 Reputation points Independent Advisor
    2025-07-09T09:54:39.68+00:00

    After running that command, please open Disk Management and mark the C drive as the Active partition. Post a screenshot of Disk Management.

    (Running the takeown command again won't help because ownership have been changed already. We're now discarding the System Reserved partition.)

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  2. Vítězslav Herman 0 Reputation points
    2025-07-09T09:57:29.9366667+00:00

    ah sorry, forgot to mention, I did that - so the C is active nowsprávce disků C aktivní

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  3. Ramesh Srinivasan 88,105 Reputation points Independent Advisor
    2025-07-09T10:02:48.17+00:00

    You may restart the system to check if it boots fine.

    The Recovery partition can be resized (to 900 MB) using AOMEI.

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  4. Vítězslav Herman 0 Reputation points
    2025-07-09T10:29:57.2166667+00:00

    Ok, after booting its fine.

    Should I now also proceed the "Restore permitions" ?

    Btw in AOMEI I was able to prepare the extension by your manual of the partitions "reservation by system" and "the recovery partition" .. so just now I am waiting on your confirmation, that I can apply the changes and in which order (if i should first restore the permitions and then do the AOMEI change)

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  5. Ramesh Srinivasan 88,105 Reputation points Independent Advisor
    2025-07-09T10:32:33.9+00:00

    The System Reserved partition is no longer needed. It can be left alone or deleted.

    The next step is to shrink the C drive by 375 MB using Disk Management. Then, use AOMEI to extend the Recovery partition (526 + 375 MB).

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