windows vista locks up at login screen, mouse not reacting, keyboard not reacting.

My dad called me and is having a problem with his laptop. It is running Vista Home Basic. It starts up and gets to the screen where you type in your password, but freezes there. The mouse is not active, and he cannot type in his password. When trying to boot up in safe mode, it does the same thing. Has anyone had issues with this before?

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Answer

RajithR

Hi,

Have there been any changes made to the computer prior to this issue?

After starting up the computer leave the computer idle for some time and check what happens. Check if you receive any error messages.

This problem may occur in many scenarios. These scenarios include the following:

a.	The registry is corrupted.
b.	A System file is missing or damaged.
c.	A device driver file is missing or damaged.

You need to do a Startup repair or System Restore from DVD to fix this issue

Startup Repair: You can run the Startup Repair tool by using the Windows Vista installation disc or by using the computer's preinstalled recovery options.

Please refer this article to perform a Startup Repair

http://support.microsoft.com/kb/925810

Startup Repair: frequently asked questions

http://windows.microsoft.com/en-US/windows-vista/Startup-Repair-frequently-asked-questions

System Restore: Follow the below article to perform a System Restore.

http://support.microsoft.com/kb/940765

Refer: How to troubleshoot performance issues during startup in Windows Vista
http://support.microsoft.com/kb/950684

Thank you