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your clean up tool forgot something

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i installed acronis backup years ago to try/compare it. In the device manager there was an acronis driver at the top which had no business being there. I remember i tried removing it over a year ago, which broke some stuff so restored a macrium backup and left it there. Now i have a new pc with same disks/os so went on a mission to get rid of lingering acronis stuff. What a horrible damn ordeal!! MANY hours!

The main problem was macrium reflect would stop working after trying to remove acronis leftovers using the removal tool and alot of googling.

Many posts mention the UpperFilters/LowerFilters

reg query HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E967-E325-11CE-BFC1-08002BE10318}

reg query HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{71a27cdd-812a-11d0-bec7-08002be2092f}

BUT your silly removal program forgot a very important spot which was breaking macrium!

Lo and behold here is the magic key that wasted all those hours:

reg query HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{533c5b84-ec70-11d2-9505-00c04f79deaf}


The UpperFilters contained mrcbt fltsrv

So remove fltsrv and macrium works!

I'm way angry for all that time wasted!

what nonsense!





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Forum Moderator
Posts: 228
Comments: 6879

Hello colin,

sorry to know about the issue! Could you please clarify what version of Acronis product was installed on your machine? I'll pass this topic to the RnD for review.