windows XP logon

[Patrick O'Brien]

when i try to logon i get the following message


windows product activation

a problem is preventing windows from accurately checking
the license for this computer.

error code:0x800700c1.

is there any way to fix this problem without having to
reinstall the operating system.

 

[Doug Knox MS-MVP]

http://support.microsoft.com/default.aspx?scid=kb;en-us;310794&Product=winxp
"Error Code: 0x80070002" Error Message Cites License-Checking Issue After
Upgrade on Dell Computer

http://support.microsoft.com/default.aspx?scid=kb;en-us;821401&Product=winxp
"Error 0x80090006" When You Restart Windows XP After You Restore Your
Computer from Backup