[Fix] Comodo Cloud Antivirus vs. Windows Defender

Recent updates of Comodo's browsers, Comodo Dragon and Comodo IceDragon, may give you (or may have given you) a nasty surprise: they silently slipped an unwanted antivirus program on your computer.

The program is called Comodo Cloud Antivirus and will cause some serious problems if you have Windows Defender installed as your antivirus of choice. These problems will start if you decide to remove that PUP (Potentially Unwanted Program) from your system.

Removing seems to start quite straightforward: you simply right-click on 'start' and choose 'Apps & features'. Then select 'Comodo Cloud Antivirus' and select 'Uninstall'. Follow the directions on the screen.

But then something really irritating will happen: your Windows Defender won't start, because it still thinks that another antivirus program is protecting your system and gives the warning 'Real-time protection: Handled by another AV program'.
How to fix this problem:
[1] Right-click 'Start'
[2] Choose 'Run', answer 'Yes' and type 'regedit' (without '') in the empty box
[3] Choose 'Edit' and then 'Find'
[4] In the searchbox type 'Bitdefender' and hit 'Enter'
[5] Delete every instance of 'Bitdefender' you find (probably only two)

Note: this fix cannot be used if you use Bitdefender as your regular antivirus program.

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