Teamviewer creates a button in the top right of all program windows, with a little two way arrow on it. To disable the two way arrow button in TeamViewer:
- Right click on the TeamViewer icon in the notification area
- Click Options
- Click Advanced -> Show advanced options
- Under “Advanced settings for Computers and Contacts”, click the Configure button next to the words QuickConnect button
- Untick Show QuickConnect button and click OK -> OK to disable the two-way arrow button
The two way arrow button should disappear straight away, without needing to reboot.