Error 1625: "This installation is forbidden by system policy"
Updated: 2/15/2013
Article ID: SLN12242
Error 1625: This installation is forbidden by system policy occurs when installing or updating TurboTax.
Possible Causes
- You're not logged in as an administrator.
- Your Windows Installer system policy prevents you from installing digitally-signed software updates.
Solutions
Log on to your computer with administrative rights, and then install (or update) TurboTax.
If that doesn't work, you will need to enable installation of digitally-signed software updates:
Windows 7 (32 bit) or Vista
- On the Windows taskbar, click Start, then All Programs, then Accessories, and then Run.
- On the Run window, type gpedit.msc, and then click OK.
- On the Local Group Policy window, navigate to Local Computer Policy, then Computer Configuration, then Administrative Templates, then Windows Components, and then Windows Installer.
- Double-click Prohibit non-administrators from applying vendor-signed updates.
- Click Disabled, and then click OK.
Windows XP
- Click Start on the Windows taskbar, and then click Run.
- On the Run window, type gpedit.msc, and then click OK.
- On the Group Policy window, navigate to Local Computer Policy, then Computer Configuration, then Administrative Templates, then Windows Components, and then Windows Installer.
- Double-click Prohibit non-administrators from applying vendor signed updates.
- Click Disabled, and then click OK.