A Problem Is Preventing Windows From Accurately Checking The License For This Computer 8007007f Dell Windows XP Log On Problem!?

Windows XP log on problem!? - a problem is preventing windows from accurately checking the license for this computer 8007007f dell

When I click on OT session, who tells me that Windows must be activated before you can log on, so when I click Yes to log the following message:

One problem is that Windows does not closely monitor the license for this computer. Erro 0x80004005

Simpy can I install new windows, but as I once again invite his drive to restore it?