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Important: Windows KB5083769 update may cause backups to get stuck
#41
Tested Hasleo_Backup_Suite_Free_260507.exe

Works for newly created jobs
but not all

Still didn't work for my previous jobs.

Perhaps size related?

I created a new small job
it worked
added to it
it worked
repeated until it no longer worked (hung)

Now I'm assuming hung because I waited for 4 minutes
maybe I should have left it much longer?

JayDee
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#42
The clearest indicator that I have found is if "vssadmin list writers" completes then File Backup will work. If it fails then the File Backup will freeze at 0%. Not sure what happens if VSS has a problem after the backup is running, but suspect if it start then it will complete as the Volume Shadow Copy has been created.
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#43
Dear all,

I have to trouble you to try the following version again:
https://www.easyuefi.com/backup-software...260508.exe

This issue is indeed caused by VSS, and Microsoft doesn't seem to care much about it.

Have a nice day!

Best regards,
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#44
Do we know what the conflict is with? It cannot just be vss, because not everyone has been having this issue.
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#45
(05-08-2026, 04:40 PM)n8chavez Wrote: Do we know what the conflict is with?  It cannot just be vss, because not everyone has been having this issue.

All user-provided log files show that the program hangs when creating or deleting VSS snapshots; however, the code for creating and deleting snapshots actually calls Microsoft's official VSS programming interfaces. Undecided
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#46
Tested the 260508 version. System, Disk/Partition, File backups are all working fine.
(Local security authority protection: on, MS vulnerable driver blocklist: off)
Didn't tested for core isolation features on/off since this issue seems not related to those settings, but can do if needed.
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#47
(05-08-2026, 05:15 PM)YasarYY Wrote: Tested the 260508 version. System, Disk/Partition, File backups are all working fine.
(Local security authority protection: on, MS vulnerable driver blocklist: off)
Didn't tested for core isolation features on/off since this issue seems not related to those settings, but can do if needed.

Thanks for the testing. Please also test with core isolation on and off and let me know the results. Much appreciated.
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#48
Has everyone seen this post about fixing vss issues:

Because this is my first post and am not permitted to post an URL. So let me give a google search for it.  Use these terms:    elevenforum.com macrium reflect vss timeout error

Now look for the 9th post in the "Macrium reflect 8 -VSS timeout" link.  I will post the copied text from that link:

The problem seems be resolved after running the script below. It was developed after some detective work with MS Copilot. The analysis of the problem is:

Running the command "vssadmin list writers" should produce a list of about 7 writers, but the process hangs and does not produce anything. This indicates that the COM+ catalog was in a partially corrupted state after the install of KB5083769. Two of my PC's experienced this problem, but not on a third one. Re-registering the servers and rebooting temporarily resolved the issue allowing the vssadmin to run normally, but then running Macrium Reflect 8 triggering the broken COM registrations.

The corruption was subtle enough that Windows didn’t auto‑repair it. A rebuild forced Windows to regenerate the modern COM+ catalog from CBS.

This is the fix script that was run from an elevated command prompt:

cd C:\windows\system32

dism /online /cleanup-image /restorehealth
sfc /scannow

regsvr32 /s vss_ps.dll
regsvr32 /s eventcls.dll
regsvr32 /s es.dll
regsvr32 /s swprv.dll
regsvr32 /s vssui.dll
regsvr32 /s msxml3.dll
regsvr32 /s msxml6.dll

net stop vss
net stop swprv
net stop eventsystem
net stop COMSysApp

net start COMSysApp
net start eventsystem
net start swprv
net start vss

So far it seems to be working as successive runs of MR8 are fine.
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#49
@Frank1940,

Welcome to the Hasleo Forum.

Quote:Because this is my first post and am not permitted to post an URL.

I did approve your first post (this one), but I do not know of any Forum Rule that prohibits Newbie members from including external URLs if they are credible and relevant to the topic being discussed (Forum Rule 9.).  The first five posts by Newbie members are subject to Moderator Pre-Approval to reduce spam posting (Forum Rule 16.).  Once a Newbie is promoted to a Junior member (Post 6), Moderator Pre-Approval is no longer required.

Thank you for sharing your information with us.  I cede to more knowledgeable members here to comment on it.

Once again, welcome to the Hasleo Forum.

Regards,
Phil
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#50
(05-08-2026, 01:27 PM)admin Wrote: Dear all,

I have to trouble you to try the following version again:
https://www.easyuefi.com/backup-software...260508.exe

This issue is indeed caused by VSS, and Microsoft doesn't seem to care much about it.

Have a nice day!

Best regards,

All tests successful with the PC in the state where "VSSadmin list writers" does not complete. This includes System Backup, Partition Backup, and File Backup. Tests were done with Core Isolation on and off.

Kudos to the dev team for providing this fix. It would be interesting to know what was changed and why this small number of PC's were affected.
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