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)"

  • Modified Date:
  • Article ID:000035969


Attempt to launch setup.exe while installing BEWS fails with the error below (Figure 1)


Figure 1.
There are three scenarios this error can occur
1. Fresh Install of Backup Exec
2. Silent Install of Backup Exec
3. Install of any agent/license in Backup Exec

Error Message

You must reboot this system to complete a previous installation or uninstall of Symantec Backup Exec For Windows Servers .After rebooting, run the setup program to continue with the installation.


A reboot request may have been initiated by any 3rd Party application which was installed on the server and it may have set the flag uncleared in following registry key
HKLM\System\CurrentControlSet\Control\Session Manager\PendingFileRenameOperations


Follow the steps below to resolve this issue
1. Clear all Temp files
2. Clear all temporary internet files
3. Backup the contents of HKLM\System\CurrentControlSet\Control\Session Manager\PendingFileRenameOperations and delete the contents
4. Check for the following registry HKLM\Software\Classes\Software\Symantec\Reboot Install  and HKLM\Software\Classes\Software\Veritas\Reboot delete the Reboot subkey.
5. Run MSI cleanup utility on the list of application install verify there are no  blank spaces showing in the list of install applications.  
6. If there any blank space select the space and remove it .
7. Download and run registry cleanup utility .
8. Reboot the server once.

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
NOTE: If the above error is encountered while installing Remote Agent for Windows Server, refer to the document below.




Terms of use for this information are found in Legal Notices.



Did this article answer your question or resolve your issue?


Did this article save you the trouble of contacting technical support?


How can we make this article more helpful?

Email Address (Optional)