TeamViewer is used widely and frequently by users all over the world.

It works fine usually; however, when some errors occur in TeamViewer, it will not work.

When that really happens, you should start to find every possible means to fix TeamViewer not working.

Keep changes

You may need theMiniTool Softwaresometime to organize system & protect data.

TeamViewer Not Working in Windows 10

Windows 10 is running on more than 800 million devices.

Recently, I noticed a problem in it: theTeamViewer not working.

Turn off Windows Defender Firewall

Many users reported that they cant use it anymore after upgrading systems to Windows 10.

Should I Upgrade to Windows 10 Reasons & Precautions?

If its not the newest one, c’mon implement the latest version.

Run the Troubleshooter

This will solve the problem effectively when the TeamViewer version is not compatible with your Windows 10.

Generally, the problem is caused when the screen resolution is too high.

Run Windows Troubleshooter

This way is only suitable for the TeamViewer downloaded from Windows Store.

TeamViewer key