FileVault blocking macOS Sierra upgrading process from OS X El Capitain I was going to upgrade to new macOS Sierra on my MacBook Air but there's a FileVault process that is encrypting all the files that doesn't allow the installation of the new OS. In the window appears a message that says FileVault encrypting and a blue thermometer under which there's written counting the remaining time that keeps going back and forth. 

Is there someone that can help me to solve this problem? 

If I try to disable FileVault, it says that I can disable once encryption process is ended.



I'm upgrading from OS X El Capitain version 10.11.6. When I try to stop FileVault it says I can't disable because the encryption process in still ongoing.



P.S. I don't have an engineering background, so please suggest actions what doesn't involve manipulation with code or similar. Thanks a lot!

It's really an interesting system: it's 2 days I don't switch off the pc hoping that the coding process finishes and it's still calculating the remaining time.....
It may be paused... Look in diskutil cs list output for "Conversion Progress" near the bottom.

Conversion Progress:   Paused


If it says "Paused" like above then on 10.11 you can use fsck_cs to fix it. Use the Physical Volume disk id from your diskutil output (disk0s2 in this example):

fsck_cs -y disk0s2