If it works fine then the issue is simply because of the security application. Disable the application for a short time and check if BlueStacks work in that period. Simply right click the antivirus icon from the system tray and select the option Disable.

Try turning off the antivirus application especially if you have Avast. In rare cases, the problem can caused by improper settings and/or disabled virtualization technology. Again, it points to a bug in the Windows or BlueStacks update. For some users, this might happen after the Windows update as well. So, the usually cause of this error is a bug in the update.

A lot of users started seeing this error when they updated the BlueStacks to the newer version. This error message usually appears after installing the BlueStacks update. These options usually do not resolve the issue and keep you from using the BlueStacks. You can either try to restart the Engine from the error dialog or reboot the PC and try again. Sometimes, when starting the BlueStacks, you will see an error message indicating that the Engine could not be started. BlueStacks is an Android emulator that lets you run Android games and apps on your PC or Mac.

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