Hi,
Was it just the shift key that has the problem and others key does work fine right? Please do try these troubleshooting steps that may help.
- First do try pressing the shift key using the Onscreen keyboard.
- Search for osk and once Onscreen keyboard is open press both shift key and see if it will still type a character or not.
- If the same problem will persist do check if your keyboard language is set correctly.
- Here's how:
https
/support.office.com/en-us/article/Switch-between-different-languages-by-using-the-Language-bar-1c2242c0-fe15-4bc3-99bc-535de6f4f258
- Next is to use an external USB keyboard as well and see if it will work normally or not.
- If the USB keyboard will work normal I would suggest running System Restore...