Corran

I managed to fix it partly with SFC, see here: http://www.techsupportforum.com/microsoft-support/windows-xp-support/516534-solved-drive-names-within-explorer-completely-changed-crashes-moment-you-doubl.html And then the malware with help from here: http://www.computerforum.com/183391-drive-names-within-explorer-completely-changed-crashes-moment-you-double-click.html BTW, why doesn't Firefox let me login on this website? I have to use Chrome to post here.

The issue has been resolved. Thanks for all the advice.

I Googled the DeskMovrW too and found it to be part of some malware that changes the Active Desktop. However, the first thing I did after installing Windows (back in 2007) was disable active Desktop. It is still disabled and obviously not the cause of this. I'm thinking some files have gotten mixed up (by O&O or whatever) so I hope anyone knows what files to restore to fix this.

This is so weird, see the screenshot. This happened after booting up my pc today (running XP Pro SP3). I had a malware infection days ago and removed it almost completely (apart from random tabs popping up in Firefox). Last night I ran O&O Defrag and it finished without any problems or errors. I shut down the pc and then this morning I hung at startup. Safe mode hung at mup.sys and after some Googling I managed to 'fix' it by copying over the original registry (as detailed here: http://support.microsoft.com/default.aspx?scid=kb;en-us;Q307545). Obviously that got me back to how Windows was just after the original install in 2007. So I restored the backup of the registry I made just days ago. This fixed everything but gave me this really weird thing in Explorer. Even though the names are wrong I can still click the C: drive and see all my files and folders. I can enter any folder but the moment I double click a file it will open the file in the associated program and crash explorer at the same time. I hope someone has a solution for this!