I have tried opening my

Question

I have tried opening my computer but it will not work. It lets me open it but once I get the the Windows XP loading page and after that the screen just goes black and it says something about it failed to initialize this programme click OK to terminate...so I cliked OK and the same thing came up again and I cliked OK again and the same thing just keeps appearing. I have done this so many times. And sometimes a different thing pops up and says you do not have enough virtual memory and stuff but I cannot go onto my desktop to delete things...