How to Tell If Windows Vista SP2 Is Installed

Some users who had problems installing Windows Vista SP2 are not sure if the update completed successfully due to error encountered during the installation process. These include error “800706BE” and others.

To check whether or not the update was successfully applied, follow these steps.

1. Click the Start button
2. Type Winver in the search field and press enter
3. Inspect the build number

Build number 6000 is the original release of Vista. Build number 6001 indicates that SP1 is installed, and build number 6002 indicates that Vista SP2 has been installed.