Win10 on Laptop - Can't type my password/PIN in Log-in box

A couple of times in the past week, when I started my Laptop (a Dell Latitude E6400) with Win 10 build 10166, the login screen/page comes up (shows my Picture, name and has a place to enter my PIN) but I can't select the box to enter the PIN.

I can move/see the mouse pointer but can't select anything. I can use the arrow keys to switch between the Lock screen and Login screen - but that's it. Can't access the power/restart icon or anything.

I have to hold the power button and force a restart. Today I already tried 3 restarts (cold boots) and I still can't get to where I can enter my PIN. This is on a Microsoft Account (not local account).

Has anyone else seen this behavior?


EDIT: I'm back in. I noticed that when WIN works correctly, the password/PIN box is highlighted so you can just type in your info without actually selecting the box. When WIN is misbehaving, the password/PIN box is not highlighted.
I ran Chkdsk /f just now and that didn't find any problems. I'll run SFC scannow next.

A couple of times in the past week, when I started my Laptop (a Dell Latitude E6400) with Win 10 build 10166, the login screen/page comes up (shows my Picture, name and has a place to enter my PIN) but I can't select the box to enter the PIN.

I can move/see the mouse pointer but can't select anything. I can use the arrow keys to switch between the Lock screen and Login screen - but that's it. Can't access the power/restart icon or anything.

I have to hold the power button and force a restart. Today I already tried 3 restarts (cold boots) and I still can't get to where I can enter my PIN. This is on a Microsoft Account (not local account).

Has anyone else seen this behavior?


EDIT: I'm back in. I noticed that when WIN works correctly, the password/PIN box is highlighted so you can just type in your info without actually selecting the box. When WIN is misbehaving, the password/PIN box is not highlighted.
I ran Chkdsk /f just now and that didn't find any problems. I'll run SFC scannow next.

What was the actual fix? i'm having the exact same problem on a laptop as well, really tough one to crack. Would like to avoid a system reset.

Sounds weird but maybe you need to install keyboard or touchpad drivers. Visit your manufacturer's support page and install anything relevant. The keyboard software is called Quick Launcher or similar in some brands.

Same problem using Windows 10 Pro desktop pc. 1st thought problem was with wireless mouse and keyboard, but problem persists after swapping in wired USB keyboard/mouse. Keyboard/mouse are basic USB generic devices.

Then your USB drivers have a problem. Try updating the chipset drivers. Since keyboard/mouse don't work in normal mode, you could try in Safe Mode. To access Safe Mode restart the computer several times, but press reset or hold power to shutdown before it fully loads Windows. Eventually you will see the troubleshooting screen where you can go to Advanced startup options.

Then your USB drivers have a problem. Try updating the chipset drivers. Since keyboard/mouse don't work in normal mode, you could try in Safe Mode. To access Safe Mode restart the computer several times, but press reset or hold power to shutdown before it fully loads Windows. Eventually you will see the troubleshooting screen where you can go to Advanced startup options.

First, youre stupid! He cant even log in to his computer. So he cant install the drivers. Second, the update of the os has a glitch! So somtimes even the main keyboard nor the external keyboard cant even do its job. Even so. The ease of access cant be open as well

First, youre stupid! He cant even log in to his computer. So he cant install the drivers. Second, the update of the os has a glitch! So somtimes even the main keyboard nor the external keyboard cant even do its job. Even so. The ease of access cant be open as well

Did you read all of my reply? Did you understand it? No, you didn't! I said the OP has to try entering Safe Mode where no special drivers are running, only the standard keyboard/mouse drivers. So if his problem is because of a faulty or wrong driver (intended for a different model), then he should be able to uninstall it and make the mouse/keyboard work again. Next time Google and learn a couple of things before you reply, sm@rt@$$!