Que Es Una Reducción De Jornada

I hope I have done this correctly.
The more I pursue this issue the stranger it gets. The search appeared to work on my C: drive but on further investigation I discovered another anomaly. If I search a term from the C:, knowing there is a file in my user directory with the term associated with the search, the search will not find it but if I perform the same search from the users directory it finds all the files.
I am beginning to think that a reinstall of Windows 11 may be the only answer but that from my experience creates even more issues so would not like to go down that road.
Thanks everyone for your assistance on this matter.