I got a new laptop for Christmas and it came with FreeDos, so I had to manually install Windows 7 and then upgrade to Windows 10. I was browsing through my files to see if everything is okay and I noticed a folder named "fdos". It is located in the D partition. I assumed it was something to do with FreeDos. Can I delete it now that I've installed Windows 10? It doesn't bother me, I'm just wondering.
If you want a really clean W10 installation with none of the carried over problems/software from previous installations I would suggest you wipe everything including all partitions and start with a truly clean W10 installation - see Windows 10 - Clean Install. Having already installed W10 once you will automatically activate from the digital rights now associated with your system, you can therefore skip any product key entry when it asks for this during the installation.
Yes you can delete the FDOS folder. It contains the supporting programs for Free Dos. Also check to see if you have "FCONFIG.SYS", "KERNEL.SYS" and "AUTOEXEC.BAT". You can get rid of those also.
I was just offering an alternative suggestion for dealing with left over programs. Most W10 installations benefit enormously from a clean install. But yes you can simply delete the folder. I'm not sure if it has any registry entries so a search for fdos in the registry will find any keys and you can choose whether to delete them.
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