FIX: TeamViewer doesn't work in Windows 10/11

Windows 10 is the second most popular Windows version among users and many large software companies created programs that are compatible with it.

One of them is TeamViewer, which users reported they’re unable to use after they upgraded their systems to Windows 10.

How to fix TeamViewer issues on Windows 10?

1. Lower screen resolution
2. Tweak your Registry
3. Run the Windows Troubleshooter
4. Update Windows
5. Use another remote desktop app

1. Lower screen resolution

Before we start with doing complicated things, we should try out simple ones.

Some users report that they didn’t have any problems with the previous OS version, but after they went for an upgrade, the screen went black every time they tried to access another computer.

They reported that they just lowered the screen resolution of the host computer, and all the problems were solved.

2. Tweak your Registry

1. Create DisableDuplicationAPI as Dword, a value of 1 (if you don’t know how to do that, look for Microsoft’s support)
2. Click Start, type regedit in the Search box, and then hit Enter.
3. Go to HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432NODE\TEAMVIEWER
4. Go to File > Export and then add DisableDuplicationAPI to your registry.
5. After that, close the Registry Edit window.
6. Click Start, type services.msc in the Search box, and then press Enter.
7. Find the TeamViewer process, right-click on the service, and hit restart.

NOTE

If there is no TeamViewer key, create a registry key as an alternative workaround for running the software properly.

3. Run the Windows Troubleshooter

1. Open the Windows Settings.
2. Go to Update & Security, then to Troubleshoot.
3. Scroll down to Windows Store apps and run the Troubleshooter.

Launch TeamViewer and check if the app runs smoothly now and you have access to all its features.

This is valid if you downloaded TeamViewer from the Microsoft Store.

4. Update Windows

Make sure that you’re running the latest Windows OS updates on your machine. As a quick reminder, Microsoft constantly rolls out Windows updates in order to improve the system’s stability and fix various issues.

To access the Windows Update section, you can simply type update in the search box. This method works on all Windows versions. Then go to Windows Update, check for updates and install the available updates.

After applying one of these solutions you should be able to run TeamViewer in your Windows 10 without any problems.

But if neither changing the resolution or making an alternative registry key didn’t help, or you have some other comments or suggestions, we would like to hear that from you in the comment section below, so please express yourself if you want or need to.

Additionally, it might be a good idea to download the latest TeamViewer version to make sure you have all the updates.

Also, check out this older article which contains some suggestions that might still be helpful.

If you managed to troubleshoot TeamViewer using another method, we’d like to hear about that. Use the comments section to get in touch and tell us more.