Linux

For anyone wondering about the security issues caused by this, even if the windows partition is encrypted, it's still possible to get secrets from the Windows install.

If you have root access to a Linux machine, you can easily replace the Windows kernel loader with one that looks just like Windows, but does nothing other than steal your encryption password on login/boot.

Secure Boot/TPM would protect against this, but Linux users (especially those that are more lax about security) tend to disable it as part of installing Linux.

🙃

How badly do you need your job?

I knew someone who did this but swapped out the physical hard drive each time. I wouldn't dual boot because then it's much more obvious to IT what you've done.

This is only realistically feasible though if the hard drive is easily accessible. If it's something like a Mac or soldered in dual booting is your only choice. As others have said, this could get you in a lot of trouble with your company. Check the docs you've signed

I think this is a good idea. You may want to use a different MAC on Linux, true.

Also only use the personal drive at home if you fear being spied on.

The chance that your company embeds spyware in the BIOS is like 0%. If you can press F12, Windows is off and you will not be spied on.

Otherwise make sure to do real reboots and use this shutdown command to really turn off windows, as otherwise it hibernates only.