I went to Windows 7 - 64 Ultimate on the advice of what I read and thinking that the OS will be faster and more reliable than Win XP. Sorry Charlie!!! I have had nothing but problems. Hate the Libraries. I used the advice of Tech Republic on how to get rid of them only to have them come back on their own. Constant problems with one thing or another. Can't write to my own folders under libraries even with Administrator privileges. I tried to copy some videos only to find that the system told me that the files are no longer in the folder I was copying from. Went to the original folder and tried to write them back to the folder only to be told that I cannot write the files because they are already there but they were not. Used a un-delete program to try and recover them but they were not there. I guess they went into never never land never to be found again. My grandsons first soccer game - some great videos no more to be seen. Give me back Win XP.