This post will talk about how to completely uninstall Google Apps Sync for Microsoft Outlook (hereafter referred to as GASMO).
You might want completely uninstall GASMO for several reasons. If you're experiencing instability in Outlook, creating a new GASMO profile is typically the first step by re-running "Set up a Google Apps Sync user" and then setting the new profile as the default. Should the new profile prove to be unstable, sometimes you need to completely remove GASMO.
Here is how I do remove GASMO completely.
Uninstall GASMO via add/remove programs.
Delete the folder C:\Program Files (x86)\Google\Google Apps Sync
Delete the folder C:\Users\%username%\AppData\Local\Google\Google Apps Sync