SO I have no access to my bios settings (password locked, retrieval of password discontinued from vendor) and am unable to turn on virtualization on this laptop. I need an older version of virtualbox to be able to disable hardware virtualization.
How can I do that?
Just pull out CMOS battery for a few seconds and put it back.
Boom, you got factory reset bios setting.
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OK I'll try, brb.TY
You may need to boot without the CMOS battery while holding down the power button for 20-50 seconds, then replace it and reboot, thus completely resetting your BIOS. It may depend on the BIOS manufacturer.
I'm contemplating a similar procedure on my desktop machine to re-acquire Bluetooth functionality that either Windows or Dell (firmware?) updates removed from my QCA9565 chipset. (That's the best solution Dell tech support seems to have.)
Good luck!
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