Hi
the registry cleaner deletes a lot of necessary keys of BitDefender from the registry. I use BitDefender Internet Security 2009, and used BitDefender Internet Security 2008 before. The problem happened on both of them. I reckon the problem happens on all of BitDefender products.
Installer Reference Issue C:\Program Files\Common Files\BitDefender\BitDefender Threat Scanner\av32bit_000 HKLM\Software\Microsoft\Windows\CurrentVersion\Installer\Folders
Installer Reference Issue C:\Program Files\Common Files\BitDefender\BitDefender Threat Scanner\av32bit_000\Plugins HKLM\Software\Microsoft\Windows\CurrentVersion\Installer\Folders
Installer Reference Issue C:\Program Files\BitDefender\BitDefender 2009\as2core\antispam_sig_000 HKLM\Software\Microsoft\Windows\CurrentVersion\Installer\Folders
CCleaner deletes some other necessary keys as well. They follow.
Installer Reference Issue C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Upgrade HKLM\Software\Microsoft\Windows\CurrentVersion\Installer\Folders
Installer Reference Issue C:\Program Files\SONY VGP-UPR1 (Display Adapter)\updates HKLM\Software\Microsoft\Windows\CurrentVersion\Installer\Folders
thanks
Hemanth