There are two places in the registry where the DisableRollback policy value can be set. To resolve this problem, you must find out where the DisableRollback policy was set and remove or disable the setting.
To find out whether this property exists in your registry, run C:\Regedit.exe and check the following locations:
Code: Select all
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Installer\DisableRollback
Code: Select all
HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Installer\DisableRollback
If the DisableRollback key exists and has a value of "1", delete the key or set the value of the key to "0". (You can also set DisableRollback through command-line instructions.) Microsoft recommends that administrators and developers not set this property if they use command line instructions to run Setup, or Setup will not work.