I am facing a bit weird issue on my system. I am using Windows and I am no longer able to use Alt + Tab to switch applications. When press that keys I can see the Windows switch screen. But when I release the keys that did not worked all. It looks that Windows is not responding when I try to choose a new window. The issue is a bit weird which is really uncommon. Here are some of things that can provide more highlight :
- First the keyboard is working quiet fine. There is no issue with the ALT and TAB key. They are not getting stucked. I had checked that in Word by testing a different number of things. I have a USB keyboard with me and it is just purchased last month.
- Another thing that proved my keyboard works fine is through Remote Desktop. I connected to another computer in Teamviewer. When I press Atl + Tab in that it worked. I can change the windows.
- I had tested one more thing. I had created a new user account in Windows. But still the same problem.
- After restarting computing in Safe Mode the keyboard starts working fine.
- From Task Manager I had killed the process explorer.exe. I had kept cmd, and Explorer working on the backside. At that point when I press Alt + Tab the same did not worked. So does this issue lies with Windows shell.
- Now this thing has confused me more. When I hold both the ALT key (left and right) for sometime and then release it and again when I press the TAb key I can switch the apps back again. But it does not work when I use the left alt + tab sequence.
- I am not sure that this will be associated with the hardware that I have. But the problem appear when I added a new Nvidia 6600 graphic card in my computer. I had installed some accounting software and games after that. I had updated my gpu's driver and also checked it was working fine. To ensure that this is not a gpu issue I re-installed the card a number of time.
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