There are 8 files in C:\Windows\Temp that are taking 2.56GB. The files seem to be created by NOD32 or (something) since only nod32krn.exe has handles on all 8 files (from handle.exe, part of MS utilities). Steps that led to this (everything was running smoothly before): 1. NOD32 v188.8.131.52 installed and updated to 2786. RESTARTED. 2. Run True Image Home v11 to image my freshly installed Windows Vista with all drivers and security updates. 3. True Image finishes. I then visited www.divx.com to download the DivX program from Internet Explorer 7. 4. The download stops with about 200KB remaining and the download dialog freezes. 5. Hard drive goes CRAZY, so opened up Resource Monitor. 6. Inside C:\Windows\Temp are 8 files with NOD****.tmp newly created. The files are locked to nod32krn.exe. File NOD6B50.tmp grew to 1.69GB and stops. Hard drive still goes crazy, everything is slow. Can't delete them since nod32krn.exe has handles on them. 7. Restarted, now I can delete them. 8. Try download DivX again, same symptoms. The download dialog freezes with a few KB left, and new NOD****.tmp are created. Is this a problem with the new update 2786? Everything was working perfectly until I updated to this one. All the downloads went fine.