every time i boot up before it lets me sign on, a windows configuring comes on every single time for about to weeks now, and its taking about five minutes to boot up after. i do music and my editing programs and video programs and wmplayer now freeze and skip about every 7 to 10 seconds, making my work impossible.ive tired system restore but it wont let me create a earlier date, or go past the date of the nov 18 2011.before it was showing a black screen when i would boot up and would say" corrupt file sytem ntfs, said their was a corrupt file do to a recent update fail or installed, so i have went to windows and installed every update i could, now the black screen doesnt come on , but the freeze in my programs and media continues as well the boot up. but here whats wierd cuz if i watch videos online or listen to music online there is no freeze? just on when offline? somebody help please?