I have recently bought a new HP 620 Laptop with Windows 7 64 bit.
It is worth noting that the following problems only seem to occur when I am in my offices, so I can only think that these are being caused by the wireless internet and/or the power supply. Either that, or it is a huge coinicidence that I havent erxperienced the problems when using my laptop at home.
Firstly, I have had numerous issues with the USB ports. The problems started when I was using a USB mouse and after working for a period of time, the mouse would stop working and I would get an error message saying that the USB device had an error. Since then, I have USB errors pop up even when I turn the laptop on without having anything plugged into it. The laptop will also repeatedly make the 'der dum' noise which you hear when you plug a usb device in, even when nothing is being plugged in. I have tried uninstalling all the usb drivers and re-installing them but this still hasn't rectified the problem.
The second issue I am facing is that the touchpad(mousepad) regulalry stops working and freezes the cursor on the screen. I am able to use the rest of the laptop(keyboard etc) but am unable to either move the cursor or use the click button. This means I have to turn off the laptop and restart it in order to have it work again. Similarly I have tried uninstalling and reinstalling the drivers for this but the problem seems to be occurring more frequently than ever.
I have tried contacting HP support and to be honest they were pretty uselsss. Not giving any real suggestions on how to rectify the issue, but only getting me to update the drivers which I had already done.
If anybody has a solution it would save me from so much stress and would be greatly appreciated!