My personal view is. The repair place is using the corrupt drive will corrupt again so buy this over the top price garbage drive and it'll never happen again scam. You likely had a virus that corrupted your partition tables. You can get some program that is linux cd or usb based to start when your computer boots. It'll copy everything it can find bit per bit and make raw files from it.
Now if you use this you will corrupt the drive contents if you copy to the same drive so get a huge portable drive to save the files.
I can't remember the name of the program but it takes days, BUT is completely free and runs in a terminal and it's simple, it's called disk "something" and photo "something" but it's on the tip of my tongue. There might be a program out there that can somehow decode your partition tables for you.
When this happened to me it was because I punched my server tower so hard a stick of ram popped open the little plastic lever that held it down so half the stick was getting a partial voltage and the files copied partially corrupting the entire windows xp install. Lucky for me I had to hard drives and one was backup and I reinstalled the OS in less than 2 hrs with all programs and updates and was good to go. Always have a portable even and old one for basic storage needs. Sure it could get a problem but media like CD's and DVD's have failed me a million times more and then full time consuming backup disks are all shit so a second drive or a second computer to hold your valuable files is a must in my eyes.
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