Hi Jonathan
This is a common problem after uninstalling WinZip, it does not replace the original file associations for Zip file with Explorer
Click the link below, on that page scroll down to the 'Option Two' section
https://www.tenforums.com/tutorials/8703-restor...
At the bottom of the table in that section, click ZIP
That will download a file called Zip.reg, right click that file and choose Merge, then confirm the merge
After a restart your zip file associations will be fixed . ..
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