Before upgrading to Windows Vista, you must uninstall the Windows PowerShell component (if installed). If you do not uninstall Windows PowerShell prior to the upgrade, Windows Vista Setup will fail with the following Compatibility Report.
Windows PowerShell is part of the Windows Management Framework Core package (Windows PowerShell 2.0 and WinRM 2.0). To uninstall this package, use the following instructions.
- From the Start menu, select Control Panel. The Control Panel window will be displayed.
- From the Control Panel, select the Add or Remove Programs category. The Add or Remove Programs windows will be displayed.
- Locate and select Windows Management Framework Core, and then click Remove. The Software Update Removal Wizard will be displayed.
- Click Next. The Software Update Removal Wizard will prepare to uninstall the package.
The Software Update Removal Wizard will uninstall the package.
Once the package is uninstalled, the Windows Management Framework Core has been successfully removed window will be displayed.
- Click Finish.