I have an older Hackintosh. Running Yosemite. It was doing very well for me for quite some time until earlier this year.
A few minutes after startup, and it crashes.
I have tried the following:
I removed all software that was set to launch on startup, including ProTec6.
I have tried launching in safe mode.
I have tried disconnecting the cables.
I have tried disabling Ethernet in BIOS.
That last option worked, and I then ran EtreCheck, and only saw that Sophos components were hanging around. (I must have removed Sophos at some point in the past.)
No other significant errors were found, but I was unable to update EtreCheck without an Internet connection. Nor can I install Sophos anew without that connection. Connecting to the Internet will freeze the whole system a few minutes after starting.
I suspect it might have been the VPN software I installed shortly before this craziness started. It was paid software (although I can't remember which right now), but I can't find any of its components among the running processes.
I'm at my wits end...
Any help will be gratefully acknowledged and acted on.
CPU: Intel Core i7-4790K