I have an Acer Predator PH317-52 , 64 bit, with Windows 10 Version 1903. I just reinstalled windows 10 from an ISO file I downloaded with the media creation tool & I c hose not to keep anything. About a month ago after an update & I am sorry but I don't know which one exactly, I found when I tried to create a restore point I got Access Denied error 0x800070005. I looked at all help articles on this error & tried all of the fixes but none worked. I also get access denied on folders an administrator should have access to. I went to my BIOS to check those settings and it will only allow me to change certain things but even after I save those F10 & exit I find they are not changed after a restart. I can't even change the boot order or disable secure boot. I have a 500GB SSD with my programs on it & a regular 1TB HD for my data. I even enabled the administrator account in command prompt and had the same results using that. I am at a loss as to what to do. Anyone know what could be going on?