Windows Upgrade Help and more

Same here. You could also try running the Windows troubleshooter for audio, since it might sort out both issues at once.

Yeah, You could also try using the official Media Creation Tool to bypass some of the installer checks. Another option is checking if your motherboard has a TPM setting you need to enable in the BIOS.

+1 Yeah, that error's a common headache after the upgrade. A quick tip: try running the Activation troubleshooter again, but make sure you're logged in with the same Microsoft account you used on Windows 10. Hope that helps.

You could also try using the official Media Creation Tool to do a clean install, which sometimes bypasses the upgrade checker issues.