Revive my old MacBook Pro
I'm trying to revive my old mid-2010 MacbookPro. My current system is running Monterey and it won't let me install the Yosemite installer. Any suggestions on how I can install the OS?
Thanks
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Sadly, you need to create a bootable OS installer drive as the drives format was altered from HFS+ to APFS when you upgraded your system so the drive can't be brought back to the older file system without a full reformat and partition.
par Dan