Download and install Revo Uninstaller (Freeware version). Make sure you download the free version, not the paid for version.
Interface is pretty straight forward.
1) Right click on the program you want to get rid of and select Uninstall. Click Yes when asked.
2) Select Advanced and click on Next.
3) Click OK if asked are you sure you want to remove it.
4) The normal uninstaller will run if there is one, click Next when it completes, otherwise Click Next.
5) Revo will then scan for leftover information in the Registry and on the hard drive, click Next.
6) If there are leftover registry entries, review them. To get rid all of the Bolded entries, click the Select button. Otherwise, go through the list and check only the ones you want deleted. Click the Delete button. When done, click Next.
7) Any left over files on the hard drive will be listed. Click on Select All then Delete to get rid of them. If any can not be deleted, you will have to reboot once Revo ends, then they will be deleted.
Click the Finish button.
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Use Revo to unintall anything beside Nortons.
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All this can be removed.
Gateway Registration Gateway Incorporated 5/12/2011 1.03.3004
Gateway ScreenSaver Gateway Incorporated 5/12/2011 1.1.0121.2011
Gateway Social Networks CyberLink Corp. 4/18/2011 26.1 MB 2.0.2211
Gateway Updater Gateway Incorporated 4/18/2011 1.02.3005
Identity Card Gateway Incorporated 5/12/2011 1.00.3006
Launch Manager Gateway 5/12/2011 5.1.4
Welcome Center Gateway Incorporated 5/12/2011 1.02.3102
Windows Live Essentials Microsoft Corporation 4/18/2011 15.4.3508.1109
This could also be removed if you don't need it.
Video Web Camera CyberLink Corp. 5/11/2011 33.7 MB 1.0.1510
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Norton Internet Security Symantec Corporation 7/30/2011 18.1.0.37
Download this
Nortons removal tool (do not try to remove Nortons with "add and Remove Programs").
Replace Nortons with
MSE
See how you go.
Cheers,
Lee
PS Edit: Defrag. your PC when you finish.