After installing, why does Windows sometimes prompt to restart?
When upgrading to Flash Player 8, you only need to restart the browser window in which you want to view Flash content. For Flash Player 7 and earlier, when upgrading the Flash Player for Windows in Internet Explorer, you are advised that “You must restart your computer before the new settings will take effect.” Windows 2000 and later do not allow any ActiveX control to be replaced when in use. Flash Player for Windows Internet Explorer is an ActiveX control. If Windows considers the ActiveX control to be in use, you will receive the above message. Generally, you need only to exit and restart Internet Explorer. If this message persists, restart your computer.
When upgrading to Flash Player 8 you only will need to restart the browser window that you want to view Flash content in. For Flash Player 7 and below when upgrading the Flash Player for Windows in Internet Explorer, you are advised that “You must restart your computer before the new settings will take effect.” Windows 2000 and later will not allow any ActiveX control to be replaced when in use. Adobe Flash Player for Windows Internet Explorer is an ActiveX control. If Windows considers the ActiveX control to be in use, you will receive the above message. Generally, you need to only exit and re-launch Internet Explorer. If this message persists, restart your computer. Security warning dialog box Security warnings are provided by your own browser based on security settings made in the browser’s preferences. Warnings such as these are typical with any browser plug-in when these security settings are enabled. For details, refer to What is this security warning I see when viewing Web sites
