can you confirm if you issue was resolved after disabling fast start up?
Fast startup is a combination of hibernation & shut down. You're system shuts down normally, but the system provides a little power to your on memory to store data. Now, you will notice if you use fast startup & you take out ram & put in new or the same.
It'll take a but longer to load up & sometimes crash during the load up as it was looking for files no longer accessible.
Disabling fast startup only does one thing. It doesn't use hibernation. It re loads data from your HDD or SSD to load up. Now fast startup is useless if you use a SSD because the access times are no different from ram to SSD, in many cases its better from the
SSD. I don't have fast startup enabled because it can cause corruption & crashing during windows load up. It has no effect on the system once it's loaded up. So only disable if you have problems loading windows. Once windows has fully loaded & you've been
using software or whatever. Fast startup has no bearing at that point on your system.
I will also like to add. Fast startup is the worst thing you can have enabled if you have a laptop. Because if a battery goes dead after or taken out. It will try & load data that's not available anymore & most likely crash during boot.