Ok when I formatted my hard drive about a year ago I split it into two drives ; C drive and D drive. D drive has 190 gigs on it and is for my downloads, games, music, all kinds of files and programs. C drive is for windows programs and files only. Recently I am not able to install new programs to my D drive but I can to my C drive. I can put songs and videos and images on my d drive but any file of program that requires installation will not install in d. I am stupefied on this. I can still use all my installed D drive programs i just cant add more for some reason. Ive done error check and other test and no errors have been found. If anyone can help me or point me in the right direction I would be greatly appreciative!