Sophie-1…this is disturbing because we tend to want to rely on this Passport backup.
I’m curious…was not the device normally connected and a daily/weekly plan initiated. Could you open the main panel and look at your schedule and review the front panel that tell when the last and missed backups were done. Does it point to the one you did. You said you initiated a new backup, manually, prior to you new computer but the only file dates showing up are from long ago…strange if periodic backups were normally being done.
In Win Explorer, go to the Passport device. In the upper right corner, there is a search…try typing in a name of one of the files you think should have been backed up. You should be able to use wildcards at the end like mygoodies*…
I’m really new to Passport and have never done a Restore or Manual backup. I’m guessing in Manual, the program starts Now, and uses the files and folders that were identified in you list. I also think it is a backup (where modified dates are check on each file/folder) and if a existing file has a newer date…back it up…if it never existed before in a folder, back it up. I do not think a manual update tells the program to force backup All the files and folders, like when the program was initially set up.
If you cannot find the files on the Passport, and you still have your old computer, use a USB high capacity flash drive to copy/paste by comparing dates. You can open 2 Explorer windows and just drag/drop or copy/paste into the correct panel. Cntl N, will create a 2nd window that you can point to each folder.
I have yet to find an Log file of each backup done that tells which files/folder got backed up or failed and the dates and sizes…posted a forum question…no response