Error discarding checkout when 'Use my Local Draft folder' is checked

Question

We are getting the error 'The system cannot find the file specified. (Exception from HRESULT 0x80070002)' when discarding checkouts in our production 2010 environment. Steps to repro are:
upload a file to a document library (OOB Shared Documents is fine)
check the document in the library view
Choose 'check out'
Check 'Use my local drafts folder' when prompted, if it is not checked by default
Once checked out, check the box again and choose 'discard check out'
After the browser hangs for a bit, we get the error above.  We've reproed this on multiple machines, but mine is 64bit Windows 7 with IE 8.
Browsing to 'SharePoint Drafts' on the client machine confirms the file is present.  I suspected UAC or Protected Mode, based on similar issues posted online about SP 2007.  However, I've confirmed protected mode is off for this site, and it is
listed as 'Local Intranet', with the default settings for that zone.

Answer 1

Hi danroot,
Please send the screenshot of the error into the forum.
What is your Internet Explorer’s version? Is it 32 bit or 64 bit?
If you use 32 bit, try to use Internet Explorer 64 bit, then check the effect.
Which account did you use to log into the client and SharePoint site? Are they the same account?
Make sure the account who log into the client has enough permission the “SharePoint drafts” folder.
Try to use another account to log into the SharePoint site, check the effect.
Hope this is helpful.
Rock Wang
Regards, Rock Wang Microsoft Online Community Support