VMware BIOS issue

[mntbighker]

I have run Fusion for years but lately my VM's refuse to launch because Fusion 10 claims randomly that VT-x is unsupported or disabled. My Z77 remains a supported CPU, and it's enabled in BIOS. But it gets weird. I was running Fusion all afternoon today. I rebooted and it failed. I checked the BIOS and it was disabled for some reason. I enabled it but it still fails. Checking the BIOS again it remains enabled. So somehow it got disabled, and even with it showing enabled it fails. But it worked earlier today.

Ideas?

 

[mntbighker]

This behavior continues on 10.15.3. With every reboot it's a crap shot as to if VMware will work. You just have to keep rebooting until it works. It doesn't help matters that Catalina has been randomly rebooting on it's own lately. I get no prompt from the OS that it restarted unexpectedly.

 

[mntbighker]

Back to Mohave and no more issues.

 

[enzo2012]

You'll have to upgrade to 11.5 if you want stable Fusion on Catalina.

 

[mntbighker]

You'll have to upgrade to 11.5 if you want stable Fusion on Catalina.

I had so many issues with Catalina I downgraded to Mohave. But thanks for the tip.