JollyRoger125 wrote:
I have already tried installing Monterey 3 times. Errors each time. Deleted the installation file and turned it off and restarted the computer each attempt.
Tunning a Macbook Pro early 2015 which is listed as supported.
If you have the full installer ~12-13 GB it will be sitting in your Applications folder "Install macOS Monterey.app"
Reboot into safe boot mode and launch the installer form there. SafeBoot https://support.apple.com/en-us/HT201262
Verify you have adequate free storage space if the SSD is choked for space it will not install.
How to upgrade to macOS Monterey
https://support.apple.com/en-us/HT212735