Help badly needed; computer freezing at Vista loading bar/at desktop

Lockstep

Could really do with help if anyone is able.

I'm running an Asus A5SL laptop with Vista Home PRemium. Is around a year old. Intel Duo Core t5550, 250gb Hard drive, ATI mobility Radeon HD 3470.

Been having problems with it for a few months now and I'm really fed up with it.

Every time I boot up, Vista will freeze at the green loading bar, sometimes it will fix itself, but usually it will stay frozen unless I hold down the ctrl and alt keys (I have no idea why). THere are no problems at all in safe mode.

When on the desktop it's no better, sometimes it will run extremely well, without any problems. Other times, it freezes. If the Ctrl and Alt keys are held down, then it will run normally (although holding down the Ctrl and Alt keys make typing extremely tough as letters can be put in their alternate form when these 2 keys are held down) but if the keys are not pressed, then the computer stays frozen.

Would anyone be able to help me out? I'm trying to write assignments and the freezing is doing my head in. I've reinstalled Vista and the same problems arise.
Any help greatfully appreciated.
Thanks

quaidox

if a reinstall didn't sort it out i'd be thinking that there's a problem with the actual keyboard itself. have you tried a different keyboard? Maybe a ps/2 keyboard if the one you are using is usb and vice versa?

Lockstep

It's a laptop with an integrated keyboard; any way I can test this?

quaidox

you could plug in a usb keyboard for a pc and see if it does the same thing....

Encoder1970

Do you have the discs that comes with the lappy?
Try doing a repair.

quaidox

Encoder1970 wrote: »

Do you have the discs that comes with the lappy?
Try doing a repair.

the op already reinstalled vista, and the problems still there, so i don't think a repair will resolve it either....

Coolmaster

Well I've never heard of a problem like that before. After you've reinstalled Vista what happens now? Note do you regulary scan your pc. It may be a virus?

Lockstep

Run AVG virus scans every week. Nothing going for that either.

Also tried defragging it but same problems.

Lockstep

quaidox wrote: »

you could plug in a usb keyboard for a pc and see if it does the same thing....

Uninstalled the integrated keyboard but when I reinstalled the drivers, the same problems arose (unable to disable it as it's integrated)

It's not the mouse; disconnected/reinstalled/disabled it etc and the same problems were there.

quaidox

kickoutthejams wrote: »

Uninstalled the integrated keyboard but when I reinstalled the drivers, the same problems arose (unable to disable it as it's integrated)

It's not the mouse; disconnected/reinstalled/disabled it etc and the same problems were there.

what i mean for you to try is an external usb keyboard. you can leave the onboard keyboard enabled, both of em will still work at the same time.
if there is something physically wrong with your onboard keyboard, uninstalling and reinstalling the windows drivers for it isn't going to make any difference. it sounds to me like there is dirt caught under the keys. if you have access to a can of compressed air it might be worth giving it a blast. maybe even take out the keyboard from the laptop and give it a good shake/blast of compressed air.

Lockstep

Could it be a keyboard problem? The mouse doesn't work either when the computer freezes.

quaidox

are you using an external mouse or the integrated touchpad?

Lockstep

Using an external mouse since I got the laptop. Worked fine up until now.

quaidox

the plot thickens!
i'd still recommend trying an external keyboard and seeing if the problem happens when you use that instead of the onboard keyboard.....

Lockstep

Tried external keyboard, same problems still arose, still worked if I held down CTL and ALT as well.

Lockstep

Any other advice? It's wrecking my head so it is.