Does that mean there was bitrot ready in the original file? Something else? How is the checksum even generated successfully if it's corrupted or undreadable in the first place.

Any way to fix?

From whet I understand thr bigger more expensive UPS have safe shutdown features for your device but are they really that important? Then is my smaller UPS that just provides power and durgr protection useless then? Ftom my understanding, even if without a safe shutdown, as long as data is not beinb transferred at the point of shutdown, it should br fine while idling right?

I'm using Windows HashCheck Shell Extension and it works by right clicking a file/folder and creating a checksum file for the entire file. The issue with this is this is manually done and that if I try to make a checksum for a large number of files at once, it lumps it all together into ONE checksum file whereas I would like multiple smaller checksum files for every folder (so checking also doesn't take forever and that I dont have to create new checksum files since more files within the checksum means changes more likely to happen and a new file is needed to be made).

I'm using Windows HashCheck Shell Extension and it works by right clicking a file/folder and creating a checksum file for the entire file. The issue with this is this is manually done and that if I try to make a checksum for a large number of files at once, it lumps it all together into ONE checksum file whereas I would like multiple smaller checksum files for every folder (so checking also doesn't take forever and that I dont have to create new checksum files since more files within the checksum means changes more likely to happen and a new file is needed to be made).