User`s guide

1. Clean up the system after the failed installation. If the installation fails,
some BitDefender registry keys and files may remain in your system. Such
remainders may prevent a new installation of BitDefender. They may also affect
system performance and stability. This is why you must remove them before you
try to install the product again.
If the error screen provides a button to run an uninstall tool, click that button to
clean up the system. Otherwise, proceed as follows:
a. Go to www.bitdefender.com/uninstall and download the uninstall tool on your
computer.
b. Run the uninstall tool using administrator privileges.
c. Restart your computer.
2. Verify possible causes why installation failed. Before you proceed to
reinstall the product, verify and remove possible conditions that may have caused
the installation to fail:
a. Check if you have any other security solution installed as they may disrupt
the normal operation of BitDefender. If this is the case, we recommend you
to remove all of the other security solutions and then reinstall BitDefender.
b. You should also check if your system is infected. Do any of the following:
⚫ Use the BitDefender Rescue CD to scan your computer and remove any
existing threats. For more information, please refer to “BitDefender Rescue
CD” (p. 319).
⚫ Open an Internet Explorer window, go to www.bitdefender.com and run an
online scan (click the scan online button).
3. Try again to install BitDefender. It is recommended that you download and run
the latest version of the installation file from www.bitdefender.com.
4. If installation fails again, contact BitDefender for support as described in “Support”
(p. 316).
35.2. BitDefender Services Are Not Responding
This article helps you troubleshoot the BitDefender Services are not responding
error. You may encounter this error as follows:
⚫ The BitDefender icon in the system tray is grayed out and a pop-up informs you
that the BitDefender services are not responding.
⚫ The BitDefender window indicates that the BitDefender services are not
responding.
The error may be caused by one of the following conditions:
⚫ an important update is being installed.
Troubleshooting
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BitDefender Internet Security 2010