Windows 10: Left shift, tab and caps keys are not working on Windows 10

The left shift, tab and caps keys are not working on Windows 10. My keyboard driver is updated and so is my windows 10. Can you help me?

:)

 

Left Shift, Caps Lock and Tab keys not working

Since update KB3149135 installed on my desktop the left shift, caps lock and tab keys no longer work.

Help would be appreciated.

 

Left shift key, caps lock, and tab key not working after updating computer to windows 10.

Basically in what the subject says, those keys have just stopped working after updating to windows 10. My shift on the other side of the keyboard still works but that doesn't help much when the left side doesn't work, nor does my caps lock or tab key work.

 

my left shift, tab, and caps lock keys no longer work after an update on 3/25/2018

to my knowledge nothing has ever been spilled on the keyboard, and the problem keys mentioned were all working before today.

i may pop the keys off later and see if anything has gotten caught underneath.

Edit: I have just popped off the keys and there wasn't much but a bit of dust. I cleaned it up and the keys seem to be working now, but my caps lock dosn't turn off unless I press any shift key.

(I do not need to hold shift to turn off the caps lock, but caps won't turn off by pressing the caps key.)

Thank you for the suggestion.

I wouldn't have suspected a little dust since most of my issues seemed to have started today.

edit; now shift caps and tab are not working again i don't know what happened they were working fine for a few hours. maybe there is some strange hotkey or something that i am pressing.