1. Did you try restoring from a previous version of windows?
2. Do you make backup copies of windows?
3. You can try this:
Help un-deleting a chessbase file in Fritz 15
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May 9, 2017
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#4
If you don't have backups, I guess you're forced into using some file recovery program. I didn't know anything about them before today, but I played around with a couple of them. Apparently, NTFS Undelete is commercial, and according to its support page, the free trial will only let you find deleted files, not recover them.
I've heard of Recuva quite a bit; It's fairly user friendly. However, I couldn't get it to work with recovering my test-deleted Fritz 8 database. I don't know if the Fritz 15 database deletion works the same as Fritz 8, but for me, when I deleted the test database, the names of most of the 13 database files were changed to random garbage names upon deletion. (However, the file extensions weren't changed.) In my case, Recuva couldn't find the files that had their names changed. (I didn't try the Recuva deep scan - Maybe I'll try that in a little while.)
I WAS able to eventually find all of the database files using TestDisk, but it took some manual detective work. Also, TestDisk is EXTREMELY user unfriendly. You have to read the documentation and play around with the program until everything starts to make sense. You can filter the search results, even though nothing on the screen mentions filtering capability. (Filtering is only mentioned in this document: https://www.cgsecurity.org/testdisk.pdf )
The first step using TestDisk was to filter the search results for the database name (without the file extensions). I was able to find several of the database files in this way.
The detective part was the second step, in which you need to filter the results by file extension. For example, filter for ".cba" (without the quotes), then go through the filtered items looking for a time and date stamp for the time that you accidentally deleted the database. Repeat this procedure for the other database file extensions (for example, .cbc, .cbe, .cbg, etc.) Of course, you'll have to know all of the file extensions that are associated with ChessBase databases.
Once you've located and recovered all of the database files, you'll have to rename the files that were changed to names like "$RH4QSRJ.cib".
I'm hoping that there might be one or two other free programs that actually work and are a bit more user friendly than TestDisk.
http://www.cgsecurity.org/wiki/TestDisk
https://www.piriform.com/recuva
I was trying to clean up the deleted games within my son's tournament database and accidentally deleted the database from within Fritz 15! Disaster.
For some reason the file is not in Windows Recycle bin. Fritz support has not given any help yet.
Can someone offer any pointers? Thank you.