I renamed the file. It reappeared in three seconds. I deleted it. The recycle bin showed an error: "Item is already in use." By what? Task Manager showed nothing. No processes. No handles.
Like something was testing whether I’d notice. isdone.dll crc check error
I’d seen isdone.dll errors before. Usually a bad download. Corrupted archive. Wrong password. Annoying, but fixable. I renamed the file
Then I noticed the timestamp. The error log showed 03:17:44 for every attempt. Not the current time. The same second. Every time. isdone.dll crc check error