Install order:
Visual Studio 2008
ReSharper
Uninstall ReSharper
CodeRush with Refactor Pro
Uninstall CodeRush with Refactor Pro
Now my intellisense doesn't work. Any settings I should look at before I try a uninstall / reinstall? I'm sure there must be something buried in the Options that these plug-ins hook into or override.
Here are a couple of settings to check:
Tools > Options > Text Editor > C# > General > Statement completion
"Auto list members" and "Parameter information" should be checked.
Tools > Options > Text Editor > C# > General > IntelliSense
"Show completion list after a character is typed" and "Committed by pressing the space bar" should be checked.
Tools > Import and Export Settings > Reset all settings
It sucks, but it's the only way I know of to restore intellisense after uninstalling Resharper.
来源：https://stackoverflow.com/questions/1908420/uninstall-of-coderush-and-resharper-intellisense-not-working