Hi Peter,
Windows are notorious for unreliability (in my opinion at least). I recently experienced internet non-connectivity issues on my PC and everything I tried to fix it didn't work. So the only option I was left with was a Windows refresh. It was sort of a blessing in disguise as it wiped clean a lot of junk on my machine but it also meant I had to reinstall all the programs I wanted to continue to use. Anyway it's a last resort option, but will almost always fix whatever issue you're experiencing.
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