Monterey upgrade refuses to install
Q The Monterey upgrade refused to install on my iMac 2017 27-inch, telling me that I had to turn off FileVault. When I did that, nothing happened. Why can’t it upgrade?
by DIGBY HARPER
A Because of differences from older versions, upgrading to Big Sur or Monterey can cause problems, and you may be asked to turn off FileVault first. When you do that, the volume isn’t necessarily decrypted immediately. The process can take a long time, so you should leave your Mac running and
