issues are not C:// but Reservation of the system + Restoration part.
VSS (Volume Shadow Copy Service) writes issue
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(236.8, 74%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVT%3C/text%3E%3C/svg%3E)
Vítězslav Herman
0
Reputation points
Hi, sorry for delay, I would like to continue in discuss about this issue
--
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.
"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"
Windows for home | Windows 10 | Files, folders, and storage
44 answers
Sort by: Most helpful
-
Deleted
This answer has been deleted due to a violation of our Code of Conduct. The answer was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
Comments have been turned off. Learn more
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(86.4, 71%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERS%3C/text%3E%3C/svg%3E)
Ramesh Srinivasan 88,105 Reputation points Independent Advisor2025-07-09T07:46:00.7333333+00:00 - Have you checked the other link I posted? it has instructions to resize the shadow storage for volume C.
The Microsoft link regarding the System Reserved Partition may not be applicable in this case. - why is this not applicable?
SRP may not be applicable because it's not the volume where the snapshot storage is located. Snapshot storage is located on the C drive as far as I know.
- Share the Acronis VSS Doctor report on OneDrive and post the link here.
-
Vítězslav Herman 0 Reputation points
2025-07-09T07:42:37.9966667+00:00 Hi, Acronis told me , that that storages, where is lack of space, is Microsoft's issue, I wrote it in the topic itself. Their "Doctor program" cannot fix that.
The Microsoft link regarding the System Reserved Partition may not be applicable in this case. - why is this not applicable? Different moderator suggested me that, that I should increase the storages of the disc.
-
Ramesh Srinivasan 88,105 Reputation points Independent Advisor
2025-07-09T07:34:28.4766667+00:00 Hi Vítězslav, This is Ramesh.
The error "There is not enough space on the volume where the snapshot storage is located" can occur if the VSS storage allocation is low on the C drive. The Microsoft link regarding the System Reserved Partition may not be applicable in this case.
Please review the following Acronis articles.
- 31418:Acronis Cyber Protect: Backup Fails with "There is not enough space on the volume where the snapshot storage is located"
- 72139: Acronis True Image: Backup Fails with "There is not enough space on the volume where the snapshot storage is located"
Note that the Acronis VSS Doctor tool has a "Fix" option that can resolve the VSS configuration on the affected volume.
Standard Disclaimer: There is a link to a non-Microsoft website. The page appears to provide accurate, safe information. Thoroughly research any product advertised on the site before you decide to download and install it.