OP, I just ran into this myself today after having no issue with 7zip on Windows 11. I was trying to unzip multiple zip files and 7zip did not show up in the context menu. I went through typical troubleshooting to no avail. Upon closer inspection I noticed that the zip files were actually from from a cloud folder on onedrive. The files had not yet been downloaded to my local machine. Once I downloaded them locally by selecting "always keep on this device" , 7zip was enabled in the context menu. Hope...