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Weird issue: Files keep copying themselves.

Posted on 2016-09-07
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Last Modified: 2016-09-14
Hi We have a rather unusual case here and have certainly never come across it before.

Files on Desktop, Documents, Downloads etc. keep multiplying. Each file and shortcut present in those locations makes a copy of itself several times over. When it first happened it had more than 50 copies of same file.

The weirdest part is that when we manually delete duplicates, after a short while, sometimes almost instantaneously, they copy themselves all over again. The original files and all duplicates remain readable and 100% workable.

The workstation is on the domain, runs the latest anniversary update of Windows 10 Pro and doesn't seem to have any infections according to Malwarebytes and ESET (under constant AV/AM protection). The only thing I can think of it is a virus of some sort that is yet to be discovered by AV vendors, or Microsoft component gone rogue i.e. OneDrive, file history etc.

I don't suppose anyone come across this before?

Any help is deeply appreciated!
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Question by:Safeserve
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6 Comments
 
LVL 12

Assisted Solution

by:andreas
andreas earned 167 total points
ID: 41788249
create another LOCAL user account (not a ms live one) and work files with that account and see what happens.

maybe its related to that specific user account.
1
 
LVL 27

Assisted Solution

by:Dr. Klahn
Dr. Klahn earned 167 total points
ID: 41788784
Check the system's Scheduled Tasks to see if there is anything running periodically that may be suspect.

Also get a copy of Microsoft Autoruns to see what is running in the system at startup time.
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LVL 92

Assisted Solution

by:nobus
nobus earned 166 total points
ID: 41789083
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Accepted Solution

by:
Safeserve earned 0 total points
ID: 41790013
Thank you all for your kind help!

We have finally found the culprit. It is indeed the File History Backup. It must have gone haywire as it was constantly backing up and restoring files which now makes sense as to why there were so many copies of copies of copies of same files.

What triggered it is yet unknown. We think it may have been something to do with Windows 10 Anniversary update.
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LVL 92

Expert Comment

by:nobus
ID: 41790744
good you found it
don't forget to close this Q
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Author Closing Comment

by:Safeserve
ID: 41797516
We've managed to find the solution after trawling through web
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