I don't usually have issues adding or removing different versions of NB so i was supprised to run into this. On my Windows 7 Box when I removed NB and canceled the installation since i decided it would be good to first back up my project files, the installer stopped working correctly since. Basically in my Control Panel>Programs>Programs and Features when I attempt to uninstall a popup window that says NetBeans IDE Installer pops up with message "configuring the uninstaller" and the progress bar goes to 100 percent and disappears. So I tried manually uninstalling by removing my .nbi and .netbeans directory and deleting the Program Files/NetBeans 7.1.2 and Program Files\glassfish-3.1.2 folders and did a reinstall. Now in my Control Panel Programs Programs and Features i have two entries of glassfish and netbeans. when i try using either of them I get the same behavior i originally did which is the popup followed by no activity. I imagine if i do another manual reinstall i'll end up with a ton of entries in my Program and Features list. I've been going at this for a couple of hours now and any advise is greatly appreciated.
Try removing everything from netbeans in program files. Then if you try to uninstall again, it will work.I have had the same problem and solved it as such.