I dual-boot Linux Mint and Windows, with each operating system installed on a separate drive. Linux is my main environment for important files, while I currently use Windows mainly for gaming because many games run more smoothly there. I may eventually try a gaming-focused Linux distribution, but I'm still learning. Are the separate drives enough to protect my Linux setup, or should I take additional precautions when downloading and running software in Windows?
3 Answers
The bigger dual-boot concern is usually the boot process rather than one operating system directly infecting the other. Windows updates can occasionally change the default boot entry or bypass the Linux boot menu, so keep a Linux installer or rescue USB available and know how to restore the bootloader. Regularly update both systems and use full-disk encryption where practical.
For gaming, using Windows on its own drive is a reasonable setup. Make sure the Windows drive is not automatically mounted by Linux, keep backups of your game saves and personal files, and use a standard user account for everyday activity. If you are downloading games from unofficial sources, no partition layout can guarantee safety; a separate computer would provide stronger isolation than dual-booting.
Separate drives reduce the chance of an ordinary Windows application affecting the Linux installation, but they are not a complete security boundary. Keep important files backed up somewhere disconnected from both systems, and avoid mounting or sharing your Linux data partition from Windows. Treat anything downloaded from unofficial sources as potentially unsafe, especially executable files.

That makes sense. I’ll keep my important files backed up separately and avoid giving Windows access to the Linux data drive.