You are likely either using rEFInd or Clover - these are the two common dual boot menus for the Steam Deck
I would highly recommend you review the source pages for these scripts/applications. If you followed a YouTube video for setup, you may be using an outdated version that already addresses your issue.
Below you will find the links to bo
If you have problems that are not listed in their instructions and a new script version does not fix your issue, then make an Issue report on their respective Github.
The following are suggestions that have helped some community members to resolve their wireless issues with the Steam Deck
There are two drivers you can use:
This is recommended first because it is an official driver and it does not have battery drain issues that the other driver below has
Just choose the appropriate file for your version of Windows, extract it from the zip/cab and then right-click on the .inf file and choose install
As stated, this will drain your battery in sleep mode, but is proven to have the best performance possible
Here is a guide to show how to install this update: Ryan Rudolf's Steam Deck WiFi Fix for Windows
https://github.com/ryanrudolfoba/SteamDeckWindowsFixForWiFiFor Wireless Access Points that don't have a separate SSID for 2.4Ghz and 5Ghz, you can force the Steam Deck to connect to 5Ghz by changing the Wireless Mode in the Driver Configuration:
Some users have reported creating a new SSID and only joining the Steam Deck to it resolved their issues, even on the same wireless access point. Also, it is recommended that if you have a wireless network that broadcasts both 2.4Ghz and 5Ghz, to create a 5Ghz only SSID and join the SteamDeck to this
Unfortunately, SteamDeck appears to be extremely picky about the wireless device it's connected to. If you can try a spare wireless access point, or a hotspot from your phone, this will help determine if the issue is related to your wireless network specifically.
Go to Control Panel > Hardware and Sounds > Power Options and click on the left Choose what the power buttons do then click at the top Change settings that are currently unavailable then you can uncheck Turn on fast startup and click Save Changes
This sounds silly, but it works: Go into Control Panel > Hardware and Sounds > Sound and then disable the Steam Deck's audio device, then re-enable it, then make sure the primary is set to your TV audio.
This can happen for a few different reasons(custom Windows, MS-Gamebar missing from your computer), but ultimately it is because Windows is making a call to open Gamebar and it can't find that app. You have two options:
1. Keep Gamebar: Download the Gamebar app from the App Store and make sure Game Bar is turned on in your Windows Settings
2. Disable Gamebar completely: Download and run this as Administrator: Run_As_Admin_Fix_Gamebar.bat
What it does is re-route any Microsoft calls for Gamebar to do nothing. If you don't trust that it will not harm your computer, just copy the code of the batch file into ChatGPT and have it anaylze the code. It is safe.
If you decide you want to re-enable Gamebar, you can run this script: Run_As_Admin_Fix_Gamebar.bat
It is likely that the APU driver is the cause of your performance issues. There have been performance complaints(although I have not personally seen them). To fix this, you will need to do the following:
Download and run the old APU Drivers from November 2022 Here
When running the installer, click the Additional Options on the right and then choose Factory Reset on the left.
After this has finished installing/rebooted your Steam Deck, you can optionally install the older AMD Adrenalin version from Guru3D Here
Perform the same steps as in Step 2, with the new driver.
After the Steam Deck reboots, everything should be good. If you have unlocked the Refresh Rates as outlined in Section 1.5, you will need to use Custom Resolution Utility again and re-import the BIN file.
Make sure your Date & Time are accurate in Windows You can fix the time permanently with a registry entry, instructions located here Fix Timezone by Changing to UTC
You have three options:
Change the properties of the game exe and check “Disable Fullscreen Optimizations”
Get it to run in Windowed mode or Windowed Borderless and then use Borderless Gaming or Lossless Scaling
These stutters are often related to poor wireless performance. Please follow instructions to download and set up unlocked wireless drivers. If you still have issues, please follow the instructions in the same guide about changing custom settings: