@Jpm
Thanks for your comments but when I run my backup program it creates snapshots but the wcifs error does not occur. If the AV was the issue I would have expected it to happen for every program that created a snapshot?
@Boggin
Following yesterdays uninstall/install test I also find I have this error in the event log which I did not have before:
Faulting application name: TweakingRegistryBackup.exe, version: 3.5.0.3, time stamp: 0x582f3b59
Faulting module name: MSVBVM60.DLL, version: 6.0.98.15, time stamp: 0x49b01fc3
Exception code: 0xc0000005
Fault offset: 0x000c9ba6
Faulting process ID: 0x1dd4
Faulting application start time: 0x01d299857e9f3657
Faulting application path: C:\Program Files (x86)\Tweaking.com\Registry Backup\TweakingRegistryBackup.exe
Faulting module path: C:\WINDOWS\SYSTEM32\MSVBVM60.DLL
Report ID: 2d25154a-ce62-405b-aa88-84f65146e312
Faulting package full name:
Faulting package-relative application ID: