The computer needs 20 minutes because it is loading its system and starting up properly.
The computer needs 20 minutes because it is loading its system and starting up properly.
I believe you're heading in the right direction by focusing on the broken windows update. A BIOS problem wouldn't lead to a 20-minute boot since the drive would already be handling it by then. Since the update is in a faulty state, I'd just reinstall Windows to check if the update works with an OS refresh.
I just did the sfc command again and it says that it repaired some corrupted files successfully, but I still can't download the update. I'm gonna try to update the bios driver since I only updated it once when I built the PC, but probably gonna end up reinstalling windows. I have never done a reinstall before, will I lose my files if I do that?
Restart functions identically to a full reboot, though shutting down and launching brings a hibernation boot (quick start). The OP’s PC operates smoothly during quick start but struggles under a standard boot. Likely an issue with BIOS configurations. Key concern lies in the 20-minute period—spinning patterns or a black screen/only logo. If only the logo appears without spinning, press tab to view activity.
As Hoeap5 pointed out, a shutdown partially puts the system to sleep. A restart brings it back from that state without the partial sleep. From what I understand, this suggests a driver or software is slowing down Windows startup. The lack of noticeable delay during shutdowns or reboots likely means the necessary components are already ready when the system resumes. To verify, try booting in Safe Mode. If it launches much quicker than usual, that supports the problem. To pinpoint the issue, simply disable any security programs—such as antivirus—and ensure all drivers are up to date.