Steam Deck Ultimate Windows Guide

Install Visual C++ Modules

For game and application compatibility, please install this all-in-one Visual C++ package

Install Direct X Runtimes

For game compatibility, ensure that Direct X Runtimes are updated:

Disable Edge from Running the Background

By default, Edge will run in the background when closed. These can use system resources. You can disable this by opening Edge, Unchecking ... > Settings > System and Performance > Continue running background extensions and apps when Microsoft Edge is closed

Enable Automatic Login

If you don't want to be prompted for your Windows password when powering on, or waking from sleep, follow these instructions:



Reboot to apply

Adjust Scaling

In Windows, the default Scale is set to 125% - this will result in some windows not fully being displayed on screen.

Right-click the Desktop background and choose Display Settings and under Scale & Layout change Scale from 125% to 100%

Fix Sleep Mode - Disabling Hibernation

Hibernation is unnecessary and can result in BSODs. Additionally it consumes space. Open a Command-Prompt as Administrator and type the following:

powercfg -h off

If you are using an external SSD for Windows, then it is recommended instead to do the following:

Powercfg /h on Powercfg /h /type reduced

Fix Timezone by changing to UTC

Run Command Prompt as Administrator and enter the following(requires reboot to take effect):

reg add "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TimeZoneInformation" /v RealTimeIsUniversal /d 1 /t REG_DWORD /f

After reboot, set your appropriate time in Settings

Replace On-Screen Keyboard with Touch Keyboard

Download and run the latest version, right-click the file and choose "Run as Administrator"

ReplaceOSK Releases

If you ever want to uninstall it, just re-run it

Enable Automatic Pop-Up of Touch Keyboard

Go to Settings > TIme & Language > Typing

Expand Touch Keyboard and check Show the touch keyboard when there is no keyboard attached

Increase Touch Keyboard keysize

For whatever reason, the Windows 11 Touch Keyboard doesn't scale well with the Steam Deck's resolution and the keys are very small(This is fixed if your system BIOS is F70A110)

Disabling User Account Control(OPTIONAL)

Disclaimer is that turning this off does pose a security risk. This prevents constant pop-ups when installing software, or when launching any programs that have to "Run as Administrator". Disabling this gives a more seamless experience.

Disabling Windows Upgrades/Feature Updates

Windows has in the past had a history of breaking Valve's drivers(ex. Audio Drivers broken in 22H2). Valve usually provides an updated driver, but it is not an immediate thing. To be safe, it is likely best to use InControl to disable feature updates using InControl.

Download the software:

Disabling Windows Telemetry(and all Windows Updates -- OPTIONAL)

As previously mentioned, if you would like to disable updates entirely, or just block Windows Telemetry, or both, you can use O&O Shutup to do so. Note that disabling Windows updates entirely, does increase the security risk on your Steam Deck.

Download, install and run O&O Shutup:

Proceed to the next step 4. AMD Adrenalin Software