????How to recover vanished files after upgrading Big Sur?????
My files except desktop and photos are all vanished after I upgrading from yosemite to Big Sur. I haven't received any notification to copy my files into portable disks or something like that. So I moved downloads and documents to boot disk, however all of these and other files are deleted. Despite the fault of mine or operating system, I really need to recover the files that deleted. Please help ????
My previous OS was Yosemite 10.10.05 and was so poor, I even couldn't download apps and safari couldn't access to some websites including Wikipedia. Please help me to recover my files
MacBook Air 13″, macOS 11.1