To know How to protect your Windows from win32k.sys security flaw watch this video or follow this simple steps:
1- make sure you have the latest version of Flash. You can either completely uninstall it from your computer through the Control Panel, use the Flash Updater utility on your computer to get the latest version or go to Adobe’s website to manually install the update.
2- If you’re running Windows 10, use either the latest version of Chrome or Microsoft’s Edge web browser as these already provide protection from the versions of this threat.
3- For users of Windows 10 also can activate the feature (Advanced Threat Protection – ATP ) in Windows Defender, if you’re running a previous version of Windows, be sure to check your antivirus software is up to date. And wait until the patch is available from Microsoft.