Backup Exec Installation fails to complete with a message that a reboot must be performed first

  • Article ID:100030706
  • Modified Date:
  • Product(s):


When the installation welcome screen message appears.  “You must reboot this system to complete a previous installation operation of Backup Exec. After rebooting run the Setup program to continue with the installation.”


Error Message


Warning : Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.

1.Rename or delete the following registry key:


2. Run the installation again.


Applies To


Even if the server is rebooted and the installation is run again, the same message shows.

Related Articles

Attempt to launch setup.exe for Backup Exec Installation fails with the Error "You must reboot this system to complete the previous installation or uninstall of Backup Exec For Windows Servers (BEWS)"

Was this content helpful?

Get Support