My laptop came with Wndows 7 64 bit. I didn't like it, so I did a complete new install of Win 7 32bit, using pcmover and an iso to recover my other programs and documents. Today, looking at active processes in an effort to improve performance, I see three copies of explorer.exe 64bit. I tried to close or delete these, but it says i don't have permission, even though I am logged in on an administrative account. any Advice?