cant boot past log-in

[firstmonte]

I have windows xp home and it wont boot past log-in
it also wont boot in safe mode or last known good config.
it was working fine yesterday and i have not loaded any new programs or
installed any new hardware. can someone please help me?

 

[GreenieLeBrun]

I have windows xp home and it wont boot past log-in
it also wont boot in safe mode or last known good config.
it was working fine yesterday and i have not loaded any new programs
or installed any new hardware. can someone please help me?

These may help:-

How to Troubleshoot Registry Corruption Issues
http://support.microsoft.com/?id=822705

How to Recover from a Corrupted Registry that Prevents Windows XP from
Starting
http://support.microsoft.com/default.aspx?scid=kb;en-us;307545

If not then you could try a repair install:-

How to perform an in-place upgrade (reinstallation) of Windows
http://support.microsoft.com/default.aspx?scid=kb;en-us;315341

How to Perform a Windows XP Repair Install
http://michaelstevenstech.com/XPrepairinstall.htm