I had a PC that was behaving strangely.
I eventually looked into the Windows event viewer, and found an odd error (amongst others):
the maximum file size for session readyboot has been reached.
So a search reveals its could be safely ignored… but I’m not convinced.
Since the most accepted solution is to increase the filesize limit, I decide to try it.
In regedit, I go to:
Then change MaxFileSize from 14 (hex) to 40 (hex) (ie triple the max file size).
When I restart the PC, the readyboot error (and a few other errors… eg a WMI error) are gone.
Next: look at the other errors, and see if any can be fixed