Depends what OS you get and what you want to do with said OS.
If you want games then stay with Windows.
There’s Mint linux (which I’ve heard good things about), Ubuntu (which I believ is quite popular) etc. etc. Basically there are many flavours of Linux and you’re probably best doing some research before plumping for one.
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Ah, found this it might help you, there again it might not.
Generally, for old hardware , use Puppy Linux, DSL, or Slackware. If your hardware is new and you want the “best” distro for your general needs, choose Ubuntu, CentOS, Linux Mint, or Fedora depending on which one you like the best.
If you are choosing a system based on your knowledge level of Linux, then use Ubuntu, CentOS, or Linux Mint if you are a beginner/newbie. If you are experienced in Linux and want to further your knowledge, then choose Slackware or Arch. If you are a Linux wizard, then I have no clue why you are reading this.
If your concern is reliability and stability , then choose Debian or RedHat Linux. If you like the latest software, then get Rawhide Fedora which is a rolling-release version. If you prefer Debian Linux, then get Ubuntu and enable backports and proposed updates. Arch Linux is on a rolling-release developmental cycle.
NOTE: Stability is a relative term that cannot be measured or accurately defined. I refer to Debian as being more stable because the majority of the Linux community agrees with that. However, many people debate about the most “stable distro”.
If you are wanting the Linux distro that best supports Windows software, then you should use Windows. Linux does not natively support Windows. To run Windows programs on Linux, try installing WINE (http://www.linux.org/threads/installing-and-configuring-windows-emulator-wine.4368/). Be aware though that WINE will not run all Windows programs correctly or without errors. Some programs run very well while some have minor issues and others may have severe issues_._
If Windows software needs to be run, but Windows and Linux (with WINE) are undesirable, then try the open-source system ReactOS (which is not Linux or Windows).
https://www.reactos.org/