问题
Sometimes, for some reason, the "Uninstall" button is disabled in Help > About Eclipse > Installation Details (For example, after installing Aptana plugin, which forces the use of an older installer in Eclipse Galileo).
How is it possible to remove these plugins with "Uninstall" disabled ?
回答1:
Try run eclipse as administrator. It worked for me.
回答2:
Go into "Installation History" tab (in Installation Details), choose a previous state of installation, and click "revert"
回答3:
- Close eclipse.
- Go to the folder where eclipse is installed .In \plugins folder delete the folders related to a particular plugin.
来源：https://stackoverflow.com/questions/6478158/uninstall-an-eclipse-plugin-when-the-uninstall-button-is-disabled