I'm running El Capitan + Windows 7 on a 2011 MBP which came with Lion.
The recovery mode on my MBP is broken, it sits on about 75% of the progress bar loaded for days (I've waited 2 full days on two tries) and it never loads the recovery.
The Internet Recovery however works fine.
Can I safely delete the Mac OS X Base System partition? I think if I delete it, I won't be able to get boot back into El Capitan. How can I reinstall the recovery?
I have found this question, Can not erase my Mac OS X base system even formatting the Mac OS X Base System seems impossible.
I have also read this question What is the 'Mac OS X Base System' disk image on my 2011 MacBook AIr?.
I also need to install a Lion copy on an external HDD.
When I boot into Internet Recovery mode, it puts me to a High Sierra Internet Recovery which will install HS. This is because I have El Capitan installed. I want to delete the Mac OS X Base System so that on next boot, I can be put on a Lion Internet Recovery.