Keyboard or what? Can`t use it in some phases.

[basics]

Hello guys, whenever i have a problem and i don`t know where to turn to i browse your site.

Here`s my problem.

My keyboard works in bios, works in windows(some problems though, for example sometimes it scrolls down the webpage, can`t figure if it`s a keyboard problem or one of my mouse macro buttons that`s doing that, or the motherboard i`ll investigate), but it doesn`t work when the boot windows selection screen appears.

Basically i have 3 windows 7 installed, when the selection screen comes up i can`t use the keyboard. If i start pressing a lot of random keys in this phase it sometimes start working normally.

I don`t have atm another keyboard to simply switch and see if it`s indeed the keyboard. Have you encountered this problem? Could it be the motherboard? Or mby some virus?

 

[poke49152]

Can't be a virus as Windows still isn't up at that time. I doubt it's the motherboard as it works otherwise.
I'd disconnect the mouse / take the batteries out, then start again. This way you can check if the mouse is involved somehow.

When the selection screen comes up and you wait a bit, can you then use the keyboard normally?

 

[basics]

Can't be a virus as Windows still isn't up at that time. I doubt it's the motherboard as it works otherwise.
I'd disconnect the mouse / take the batteries out, then start again. This way you can check if the mouse is involved somehow.

When the selection screen comes up and you wait a bit, can you then use the keyboard normally?

No, i can`t use it in the selection screen unless i randomly press a lot of keys, this doesn`t work always also.

 

[QSV]

I had similar problems once and went through 3 keyboards before I noticed it was actually caused by the mainboard.
Yet in your case I would first try a different keyboard, since those are easy and cheap to come by.

 

[basics]

Ok so the problem was indeed the keyboard. The new one doesn`t have any of the above problems. Good luck guys.