ALL keyboards/mouses not recognized by windows xp

[BIGLOU50]

I installed a Comp USA wireless keyboard/mouse to replace
my old Logitech wireless keyboard/mouse and everything
worked great, until I turned off my computer. The next
time I turned it on my new keyboard/mouse didn't work and
neither did my old one. Even regular corded serial
keyborads and mouses aren't being recognized by Windows.
Whats wierd though is that all keyboards/mouses are
recognized by the computer until Windows XP starts. I can
access all of the boot and starup menus but as soon as
Windows starts its like they don't exist. Does anyone
know whats going on? Is there anything I can do short of
formatting (I can't even get far enough to enter my
password so I can't reinstall Windows)? PLEASE HELP!

 

[*Vanguard*]

I installed a Comp USA wireless keyboard/mouse to replace
my old Logitech wireless keyboard/mouse and everything
worked great, until I turned off my computer. The next
time I turned it on my new keyboard/mouse didn't work and
neither did my old one. Even regular corded serial
keyborads and mouses aren't being recognized by Windows.
Whats wierd though is that all keyboards/mouses are
recognized by the computer until Windows XP starts. I can
access all of the boot and starup menus but as soon as
Windows starts its like they don't exist. Does anyone
know whats going on? Is there anything I can do short of
formatting (I can't even get far enough to enter my
password so I can't reinstall Windows)? PLEASE HELP!

Boot into Safe mode, uninstall the software for your old Logitech gear,
reboot into normal mode, and you should now have the Std PS/2 mouse
driver (you never mentioned using an USB mouse or keyboard so I'll
assume you aren't). Then install the correct software for your new
keyboard and/or mouse. Since www.compusa.com doesn't list any cordless
keyboard with a "CompUSA" brand, I don't know what is the real brand of
whatever cordless keyboard and mouse combo that you got.