Hello, When I do a large file transfer or multiple file transfers my computer gets extremely slow during the process. Slow meaning that to open the web browser it struggles and while typing search terms in google there is lag. That's just one example, other's being opening programs. Last night I reformatted my computer because I thought maybe it had something to do with it. But no luck because after the clean install was complete I transferred about 600gb back on the computer and during this process tried to view the properties xpadder (Right click-> Properties) and the entire system froze. A hard reset and I started the process all over again, tried watching tv using windows media center and it worked but flipping through channels was extremely slow and it is not usually. I'm trying to solve this problem and maybe see if others are experiencing the same. I think my hardware is more than capable: Windows 7 x64 8gb of Ram 1tb WD Caviar Black ATI Radeon 4890 Gigabye P55-UD6 rev1.0 Enermax Modu 82+ Corsair H50 some background info: I originally had my computer overclocked but after a Bios upgrade I couldn't get the same results so It is currently stock speed. Computer is only a year old. Running temps are around 40-45C Harddrive temps are normal (40-48C) I have completed a full check disk and monitor the harddrive with CrystalDisk Info (SMART Utility) and it seems 100%. Thanks.