Can not login due to error 0x80090019 - Validation Issue

[rep_berry]

Hi!

I got a severe virus infection on an old pc at home, which ofc contains some
cherished family photos and other docs which are important to me..
Now, I've got rid of the virus, I hope, but during testing and finding
solutions to my problem, I had to put the C: drive in another computer for
back-up, as I feared the master disk was about to collapse.. anyway, I can
now access the old system in Safe-mode, but when I try any other
configuration Windows reject login, stating error 0x80090019 - Windows is
unable to validate your copy.. or something..
Is it a simple solution to my problem? I bought and built the computer
myself in 2004 or 2005(?), and I have the original XP-CD, so I know it's a
genuine version.

If anyone answer, pls keep to a basic level, I'm no Wizard..

Brgds

 

[Andrew E.]

Try installing xp cd,boot pc to xp cd (sometimes a BIOS adjustment is needed,
1st boot device priority),at xp cd boot menu,press r key for recovery
console,
select 1 for C: press enter for password,type: Fixboot Agree,type:
CHKDSK C: /R Once thru,type: EXIT Let xp start.Otherwise,in safe-mode (
enter as administrator),create a new user account,restart pc,enter xp as
new.Or
change the product key utility,re-enter youre key, at this link:
http://www.microsoft.com/genuine/selfhelp/PKUinstructions.aspx