[Bill O]

I do not have an OS backup. What happened is this: Working in PTF 2019, I got a slide-out message from Avid that a PTF 2021 upgrade was available. Prior to backing up my project files, I followed the link & installed PTF 2021. All seemed to go well and when finished, I clicked on the desktop icon (which looked a little different, indicating the update had been successful). The new startup window appeared, but then I got an error message and it wouldn't open. I then clicked to where my project folders/files were located and they were still there. I backed up my 'Documents' folder at that point onto an external drive and called tech support at Sweetwater where I bought the 2i2 interface. The tech logged onto my laptop remotely and re-installed PTF 2021. It seemed to work, but this time my project folders/files were gone, so I restored them from the backup to the folder where they used to be located. They subsequently didn't and don't show up in the 'open' window.