Press the Alt key twice, then see if the Tab key restarts to work. Press and hold the Alt key, then press the 0, 0, and 9 number keys on your keyboard, and release the keys. Press the Ctrl key twice, and try Tab to see if it works. Press the Windows logo key twice, and see if it fixes your problem. If this method doesn’t work for you, don’t Hello everyone, I found the fix solution, you have to go windows settings / easy of access / then enable filter keys . you can turn off the Beep and display options from it. Then go to control panel /device manager / keyboards / unistall standard PS/2 keyboard. then reboot the laptop. it will fix the problem at all. 0. Go to Tablet PC and set up - except the touch screen doesn't work to set it up. 2. Go to Pen and Touch - but again, couldn't do setup there because touch screen didn't respond. 3. Restore to a previous version - before it stopped working. That didn't work. 4. Refresh the system. That didn't work. Therefore a column will have a number of keys on it as will each row. When a column (or row) input on the keyboard controller fails all the keys on that line no longer respond. Your key grouping would indicate that row has failed, the fact that Q and T are not included means that they are most likely on another row. To do this, follow these steps: Press Win + I keys to open system Settings. On the Settings window, select Update & Security. On the next window, select Troubleshoot from the left pane. In the right pane, find and expand the Keyboard. Click Run the troubleshooter. Let the process complete and restart your PC. Once your laptop shuts down, press and hold the Shift, Control, Option, and Power keys for 10 seconds. Next, release the keys, turn your MacBook back on, and check to see if you can type again. If you have an older MacBook with a removable battery, shut down your laptop from the Apple menu and then remove the battery. MoGp.

acer laptop keyboard suddenly stopped working