I had "G Lock Temp Cleaner" recommended to me, and ran a scan of my Temporary Files. I deleted (to the Recycle Bin for now) all of the .tmp and .old files. However, what about all of the .bak and the few .exe files that it listed, plus a few other types.? It also listed approx. 100 files that I think are associated with Nvidia -- "NVR****.dll" and NWRS***.dll" files. Can these files be deleted? Thanks for any help.