I’ve not seen this very often but I have encountered it on occasion while using Windows 7. When performing an installation using a .msi file, I get an error message that says “You do not have sufficient privileges to complete this installation for all users of the machine. Log on as administrator and then retry this installation.”
I’m an administrator on my PC so there’s no way that I don’t have privileges to install an application. After banging my head against the wall for a couple of hours I find that some .msi files will conflict with the User Account Control (UAC) settings in Windows 7. Initially, I had my settings so that I would be prompted when applications tried to make changes to my computer. I really like that feature but for some reason the UAC dialog doesn’t get triggered when installing the .msi file that I was using. By changing my User Account Control settings to Never Notify and rebooting my machine, I was successfully able to run the install. So if you ever get that error message when running an install and you’re already an Administrator then try changing the UAC settings to Never Notify.
To change your UAC settings:
- Go to Start à Control Panel
- Select User Accounts and Family Safety
- Select User Accounts
- Select Change User Account Control settings