Missing Windows XP registration keys

I have a Dell pc running xp pro. (well – it used to)
The pc while running was unplugged. Now I need to try a repair or reinstall XP.
With the xp disk in I am prompted for the rego number. It now refuses to accept that Rego Number for that disk.

The disk is in clean and in good condition and the relevant rego number (sticker) was attached to pc case for safe keeping. That bit worked out.

A little history
XP home use to exist on the machine but I formatted away in the XP Pro install.
Or did I ?.

Have you herd of this problem before?

The sticker on the computer refers to the original XP Home installation. So it’s not the right number. If you want to reinstall XP Professional, you’ll need the number from that disk.

Your problem with the “reinstall Windows” message is probably due to a damaged registry. This can be fixed by recovering the registry files from one of the system restore points. Microsoft have instructions on their website.

Keep in mind this is a complex task and we strongly recommend any work like this should be done by an experienced computer technician.


    You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    2 Responses to “Missing Windows XP registration keys”

    1. IT Queries » Blog Archive » Reinstalling Windows XP service packs Says:

      [...] Missing registration keys are a nuisance that we’ve discussed in a previous post. [...]

    2. Jacquelyn Jones Says:

      Hi; I have a windows xp and I’m to start school and will be using both screens to do HOME WORK.I need more features to get work done,Do you recommend a windows xp pro or Windows vista? I;m seeing a internet 8 and I don’t know if I should download it or not because I don’t know what internet 8 does.

    Leave a Reply