Can I just wipe my MacBook and start over with a fresh install?

I’ve installed Ventura 2012 15” MacBook Pro in the hope of resolving intermittent Wi-Fi connection issues which I’ve had since Catalina. Instead I now have further issues with Wi-Fi and now no Bluetooth connectivity as well. I’ve tried replacing the Wifi Bluetooth card and that has not resolved the issue. I’ve also read somewhere Catalina has caused issues with Wi-Fi, so I want to go all the way back to Mountain Lion and see if that resolves Wi-Fi and Bluetooth issues. Problem is no Wi-Fi, so I can’t go into recovery mode and restore and I’m unsure how to remove open legacy patcher as well.

Do I just create a bootable install memory stick and then wipe the hard drive on my MacBook? If so, which partition should I not mess with to avoid issues when reinstalling?

Any advice would be much appreciated.

submitted by /u/mammothwolly
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