I'm new to Linux and want to completely remove Windows and install Linux Mint instead of dual-booting. My main concern is accidentally losing the projects, coding files, and other important data currently stored on my C: drive. This is my everyday laptop, so I can't afford to lose anything or be unable to use it for long. What backup and installation steps should I follow, and how can I check whether the software I rely on will work in Linux before making the switch?
3 Answers
The first step is making a real backup to an external drive, not just assuming the files are safe on the laptop. Go through your documents, project folders, development-environment directories, saved games, photos, and anything else important, then verify that the copies can actually be opened. Once the backup is confirmed, create a bootable Mint USB and run the live environment first. Test Wi‑Fi, the camera, graphics, sound, and any other hardware before installing.
Before switching, make a list of every Windows application and workflow you depend on. Many programs have Linux versions or good alternatives, but some specialized tools may need a workaround. Linux can usually access Windows-formatted drives, but don’t rely on that as your backup. Moving over gradually also gives you time to convert project files and find replacements rather than discovering a compatibility problem after deleting Windows.
You don’t have to erase Windows immediately. You could test Mint from a USB, or install it temporarily on a separate drive. Another safe option is to remove the current Windows drive and install Linux on a new one, leaving the original untouched so you can restore the old setup if something doesn’t work. A verified backup is still important either way.

I’m nervous because this is my main laptop and I need it every day, so I want to make sure the backup and hardware checks are reliable before wiping anything.