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Windows 7: Huge files (30+GB) creating themselves in c:/windows - Help !

06 Nov 2015   #11
mediaccess

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

I located one of the files in Process explorer, but when I try to close the handle, it says :"Error opening process : The handle is invalid."


My System SpecsSystem Spec
.
06 Nov 2015   #12
DavidE

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64
 
 

Does the handle show you what Process (program) is using that file ?
My System SpecsSystem Spec
06 Nov 2015   #13
mediaccess

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

It just says system...
My System SpecsSystem Spec
.

06 Nov 2015   #14
DavidE

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64
 
 

If it was me, I'd be concerned it could be Malware, or it could also be legitimate files for some program / updates.

What i would do:
Boot up in Safe Mode and see if the files are not locked and i could rename them.
They may be too big to delete and wouldn't be kept in the Recycle Bin.
Safe Mode

If i can see them and rename them in Safe Mode, try a Clean Startup and see if there are any issues.
Troubleshoot Application Conflicts by Performing a Clean Startup

I'd want to try and find out where the files came from.
In the end i would restore a Macrium System Image backup from before the problem started.
My System SpecsSystem Spec
06 Nov 2015   #15
mediaccess

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

I managed to get rid of one og them. I had 30GB freed, but the files came back at the next startup.

They are actually building up on the boot. Their date of creation matches the time I start the PC...
My System SpecsSystem Spec
06 Nov 2015   #16
DavidE

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64
 
 

How did you get rid of one of them ?
Did you boot in safe Mode and delete it ?
If that's the case, does it get re-created if you reboot into Safe Mode, or Clean Startup ?
My System SpecsSystem Spec
06 Nov 2015   #17
mediaccess

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

I was given a script with FRST64. It managed to delete one 32GB file, but it went back the rboot after.... I am still in the sand.
My System SpecsSystem Spec
06 Nov 2015   #18
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Thank you David for coming to help.

Well something is putting those things back into your system.

A picture of Disk Management might be helpful.

A tutorial by Golden:

Disk Management - Post a Screen Capture Image


You could try unhooking all drives except the drive with Windows 7 on it.
Delete a file and reboot and see if it stays gone.

**Just to be sure did the thing come back when you did a clean startup??
My System SpecsSystem Spec
06 Nov 2015   #19
mediaccess

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Here it is, but I do not see anything special.

I'd rather not unmount my volumes though... I run a lot of drives, and all was working perfectly for more than one year...

Yes the files are remade on the startup. I don't know with what.

Since I succeeded erasing one file, I copied 30GB on c:/ of my own file.
So when the computer start, it maxes out c:/, but then I erase my 30GB file so I can work.
I need to copy it back before closing though...


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 Huge files (30+GB) creating themselves in c:/windows - Help !




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