xp log on error

After deleting what he thought was spyware most of the desktop icons on my father's computer were removed. On the next startup xp booted up as normal but at the user log on page the following message is displayed:

A problem is preventing windows from accurately checking the license for this computer error code 0x8009001a.

Although we can access windows through safe mode there is little we can do because he can't remember the administrator's password

thanks in ancticipation of your help

 

I found this so you may consider trying it:

Go to start/run, and type
regsvr32.exe regwizc.dll
Click OK, then type,
regsvr32.exe licdll.dll
and click OK

Good luck.

 

Thanks for the guidance but still get error message when trying to log on