Win8 is often unresponsive and cannot be closed.

Sometimes this strange problem is caused by the fact that most software requires environment startup software such as VC++ or .NET Framework 2.0 or higher as the boot environment. Otherwise, it will be unresponsive if you open it directly, so we will focus on checking the software startup environment by first going to the Control Panel - Programs - Programs - Turn Windows features on or off - Check .Net FrameWork 3.5, including version 2.0, then download and install. The detailed steps are as follows:

1.) First move the mouse to the lower right corner of the desktop, then select the control panel in the pop-up interface, as shown below:
Enter WIN8 control panel

Note: Enter the control panel You can also move the mouse to the lower right corner under the metro interface, and the interface shown above will also appear.

2.) Then we open the "Programs and Functions" in the Control Panel, as shown below:
Open the programs and functions in the Win8 system

3.) After entering the programs and functions, we Then select “ enable or disable the Windows function, as shown below:
Win8 enable or disable the Windows function

4.) Finally, in the pop-up Windows8 function, check the check box to select the .Net.xx program startup environment, Finally click on the "OK" at the bottom.
Check the .Net Software Service