How can I temporary disable/turn off ReSharper?

Question

How to temporarily turn off ReSharper in Visual Studio without uninstalling it?

Answer

Suspend ReSharper. A suspended ReSharper stays installed but does not run until it is resumed.

1. In Visual Studio, open Tools | Options | ReSharper.
2. Click Suspend.

To turn ReSharper back on, open the same page and click Resume.

Assign a shortcut to suspend and resume ReSharper

1. Open Tools | Options | Environment | Keyboard.
2. Find the ReSharper_ToggleSuspended command.
3. Press the shortcut to use.
4. Click Assign.

The shortcut then switches ReSharper between suspended and active.