Startup error message

I get error on Startup of Win10 system “Exception at UpdateWriteLog0 hexadecimal value 0x00, is an invalid character Line 1 Position 1” and option to click OK. I click OK and PC continues to boot normally. Searches I did found results for this error when running some program, but I found no results for the error at startup. Does anyone know the cause or a fix for this problem?

How early in the boot process does the error appear?
Have you tried starting in Safe Mode and seeing if you get the error?