Samsung DeX is not available for Windows but there are some alternatives that runs on Windows with similar functionality. The best Windows alternative is scrcpy, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Samsung DeX and nine of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Samsung DeX are AirDroid (Freemium), Vysor (Freemium), ApowerMirror (Paid) and Wormhole - Control Phone from PC (Freemium).
ApowerMirror is a wireless screen mirroring app that allows fluent streaming of your Android or iOS devices to any Mac or Windows computer. It can also control Android devices from PC with mouse and keyboard.
Mirroid is a phone mirroring and control software allows users to mirror their phones on the computer and control the phone with computer. It can be used in a working scenario and play mobile games on the computer.
Wondershare MirrorGo is a useful tool that could mirror your android phone screen to the computer. You can get all the notifications from the phones with the PC. You could use it to record phone screen, play phone games with mouse and transfer files.
Dell Mobile Connect provides a complete and wireless integration between smartphones and PCs. The (gigantic) downside is that it can only be used in newer Dell PCs. You can send SMSs, mirror screen, and more
Mirroring360 lets you wirelessly share your Chromebook, iPad, & iPhone screens without the need for hardware – like Apple TV – or cables. Start sharing your work, your ideas, and your latest apps with others using Mirroring360.