A fatal error occurred while reading the snapshot - Acronis True Image 2021 - VSSdoctor report ?
Since recently my Acronis 2021 refuses to make backups with the error message "A fatal error occurred while reading the snapshot". According to another thread I ran vssdoctor but did not get wiser.
I have a first disk with partition C: for system and programs and partition D: mainly for data, a second disk with one partition G: for data, images are stored on a NAS in my home network. Backup is made of the copmplete first disk. Yesterday I created the VSSdoctor report attached, as recommended in another thread but have no clue how to use the results. Thereafter I have tried to clean the C: partition, at the moment there are 1,13 GB free space af about 200. D:, H: and NAS have plenty of space free.
The problem is that I want to repartition the first disk, expand C: but not without making a backup first....Catch 22 situation .....
What should I do to make Acronis run again? Where is the problem?
This part repüorts an error - but which disk or whatever is this? According to size it might be the Windows recovery partition on first disk, but I never touched it before and it never shows up in the explorer.
Name: \\?\Volume{8b394a5c-0000-0000-0000-90b230000000}\
DeviceId: \\?\Volume{8b394a5c-0000-0000-0000-90b230000000}\
Size: 528 MB
Available: 76 MB
Minimum: 320 MB
IsOk: False
Description: Free space is below required minimum
IsMounted: False
Thanks for an advice
Franz47
Hi Steve, thanks for the reply. C: ist not a drive but a partition on the first disk. I have run the chkdsk on C:, but I did not watch it all the time so I have no idea whether it has fixed anything. Will see whether the backup starts running as usually.
Still same problem
I think I found where the problem lies. It is really the recovery partition on drive 1, which now has the drive letter H: in Windows Explorer (it should not have any drive letter) which Acronis tries to use. Have I changed anything? No real recall of it. I can unassign the drive letter in the VSSdoctor but also this does not change anything. I have removed the drive letter via diskpart but still the error remains. Can I do anything to make Acronis ignore this partition?
I now recovered the recovery partition from the oldest full backup. Worked without problem. Its contents should not change during use of the computer. Still error message error01.jpg in VSSdoctor and report below. Windows update?
Franz, glad that you look to have found and resolved this issue. It is strange that the error messages at the end of the VSS tool report all refer to C: rather than the identifier for the Recovery partition. The lack of space in that partition is a common factor in the tool reports and doesn't normally cause issues. Omitting that recovery partition from the backup should also confirm if that was the cause if the issue returns.
Hi Steve, sorry, but the problem is not solved yet. I removed the drive letter from the recovery partition with a partition manager. Now it does not any more appear in the windows explorer after a reboot, but the error message of the vssdoctor remains. I will try to see whether backups are possible....
No, hangs with message "backing up 256 kB" as always before. After a long time the error message usually will appear.
????
DISK I/O Error - could there be a clue?
Backup still aborted with same error message a before.
I closed every program I could get hold of. Still the same error messages in VSSdoctor. But the backup process started now as usual. No idea why now and why not before.....
Franz, please could you create an Acronis System Report zip file then share it with me via a cloud share link for such as OneDrive, Google Drive, Dropbox etc.