Hey there Matthew!
My name is Miguel Ángel and I'm an independent advisor, also a Microsoft user just like you! I'll try to help you today with your issue.
First thing we must do is an antivirus check, because malware is common to do those type of effects. Could you please run an antivirus check? You can as well use this utility provided by Microsoft: https://www.microsoft.com/en-gb/download/detail...
Second thing, we'll try doing a system files' integrity check. First of all, make sure all Windows Updates are installed.
Then, we will do some system files check, and also check the hard drive, just in case. Follow these steps:
- Press Windows + R. Type 'cmd' and press Enter.
- In the command prompt, run the following commands:
> dism /online /cleanup-image /restorehealth
> sfc /scannow
Then, we will clear Windows Update cache. Open another CMD with the steps given before and do these commands:
> net stop wuauserv
> net stop bits
After running these commands, press Windows key + R then type the path name:
C:\Windows\SoftwareDistribution
Select all of it's contents then right-click and select Delete. Then run the two commands given before once more.
Let's see if any of these solutions can actually fix it.
I'll wait for your feedback! I hope you're having a lovely 2021 so far.
Hugs,
Miguel Ángel :)