Error 0x80070002 when attempting to backup files

Hi guys,

I've been trying to backup my system data partition for a while now and am always getting the same error as result:

"The system cannot fin the file specified" Error code: 0x80070002.

I looked up online and it seems like this

Error code 0x8100002F and or error code 0x80070002 when you back up files in Windows 7

would be the fix. But when following the steps to solve "scenario 3" (which I believe to be my case), I can't install the update "KB976972", which is claimed to solve the issue. I had previously asked for help here:

Update is not applicable to your computer

and NoelDP suggested I created a new thread explaining the problem. I have a Windows7-SP1 (x64) machine with 8GB of RAM. And yes, I am trying to backup the files to an external drive using an USB connection. Also, the system anti-virus is Avira (free). That's the first and only AV installed and there were no infections up to this point, as far as I know (it's a multiple users machine).

Any feedback would be greatly appreciated.

had the same problem and finally discovered a solution that worked for me. I found this link
Backup fails with error code 0x80070002 / Assigning drive letter for system-reserved partition helps, but why ...?.

I following the suggestion of assigning a drive to the 'reserved system partition. Afterwards backup started to work again. I also noticed that I was getting the same 'bit-locker' error in the event log.

Being curious I googled the bit-locker error code (I also didn't use bit-locker) and came across this the same error and the fix was to run command mountvol /r, then mountvol /e. I got rid the 'drive' for 'eserved system partition. Lo and behold, backup still worked.

The bit-locker error started to occur after I updated the bios.

Thanks a lot, schwendemann! It worked!

Now, are you saying that if i type "mountvol /r" followed by "mountvol /e" I'll be able to run backup without having a partition letter assigned to the 'reserved system partition'?

yep.. I believe so..