Once at the desktop, go to Settings, Display, and change the display orientation to Landscape.If you're using a dock, you can connect via Ethernet if you want to use an online setup. We suggest skipping Wi-Fi connectivity and continuing with a limited setup, as Wi-Fi speeds are extremely slow until you install the official drivers.If you're having trouble using the touch screen, or if it is unresponsive, plug your Steam Deck into a USB-C dock and use an external keyboard and mouse.Follow the instructions on the screen to install Windows.You'll have to turn the Steam Deck vertically to use it. The Steam Deck will reboot from the microSD card.

Select the microSD card you created from the list of boot options.You might want to consider a USB-C docking station with two USB-A ports, so you can use to use a wired keyboard and mouse during setup.If you want to replace SteamOS with Windows, you'll need a separate USB drive bigger than 16GB to install Windows from.If your PC doesn't have a microSD card slot, you can buy a USB-A to microSD card reader.To dual-boot Windows off an SD card, you'll need a microSD card.You'll have to download and use Rufus on a primary Windows PC.You'll have to purchase a Windows license.Again, you don't need to replace SteamOS with Windows, you can dual-boot both operating systems (which we recommend doing).

But, to begin the process of installing Windows 11 on the Steam Deck, there are a few things to keep in mind: Finally, you even can shrink your SteamOS SSD's partition and install Windows alongside SteamOS do dual boot them. In the second method, you can erase the SSD in your Seam Deck and install SteamOS in place of Windows fully. For most people, the first and easiest way to do this is to install it via a microSD card and dual boot it from there without impact to your main SteamOS install. are also three ways to install Windows on the Steam Deck.

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