ESC Key Not Working After Virus

Hi Experts:
I have a client who got the "WinAntiVirus" Virus. It was removed by malwarebytes and a variety of other removal tools. However, some damage remains.

Ever since the virus infection, the ESC key has ceased to work properly in windows. Pressing the ESC key in any application or anywhere inside the operating system appears to DO NOTHING. It does work normally in bios or if we start a boot disc... So it is NOT a hardware problem.

After trying to reload drivers (to no avail) -- I created a new user profile and tested and the ESC key works fine in the new profile. So it appears the damage may be in the user profile (probably registry?)

Does anyone know how to repair/reset keyboard and key functionality inside the user profile of Windows XP Pro? Is there a registry KEY I can copy from the new user profile to the existing profile to restore this functionality?

Setting up a new user profile will involve restoring Outlook/Email and a lot of other application data that seems to make just using a new user profile a lot of work ... we were hoping to repair the existing user profile and skip all the set up work of creating a new one...

Thanks,
--Rick