The fact that Windows hangs due to the work of some processes, probably, no one needs to be told. The question is different: how to remove a task on a Windows computer so that the system itself does not suffer from the forced termination of the process? There are several methods to perform this operation. It's just that you need to proceed from which process you need to complete.
How to remove a task on a Windows 7 computer in the classic way?
Among users, the most common method for solving this problem is the so-called three-finger combination Ctrl + "Image" + Del.

It calls the standard "Task Manager", which displays all currently active processes. Usually, the question of how to remove a task on a Windows computer comes down to selecting a frozen application on the corresponding tab and clicking the remove buttontask located at the bottom right.
After that, the system will “think” a bit, after which the hung application will be removed from the same “Taskbar” with all documents open in it. Note: if the program being terminated does not have automatic saving of documents with a specified time interval (as is done, for example, in Word), all changes will be lost. In this case, the program will not even issue a corresponding request.
Restart terminal
Another, so to speak, barbaric way to solve the problem of how to cancel a task on a computer is to force a reboot.

This can be done not only with a double combination of three buttons, as mentioned above, but also by frankly disconnecting the computer from the network by long pressing the power button. But you can even restart the Windows Explorer service.
Some versions of Windows react quite categorically to this, detecting problems with the hard disk after restart. In fact, there are none. Testing is mainly about checking the boot area. But in this case it does not play a special role. Anyway, the system will be loaded, and with all active services that are in autoload.
How to cancel a task on a Windows 10 computer if it is a system service?
System services are not supposed to be disabled. But! There are so many background processes in Windows 10 that it is impossible to imagine.

In other words, to end this type of process, you will have to use not the tasks tab, which displays currently active programs (maybe even hung), but the processes or services tab. How to cancel a task on a computer? Yes, just end an unnecessary application with a standard action when you click the button below. True, here it will be necessary to clearly define in the sense of which process needs to be deactivated. If it's a system service like host support (svhost.exe), you should only terminate this process if you're sure it's a virus masquerading as a system application. There can even be several dozen such processes in the same "Task Manager". You should not be afraid. The fact is that the service itself is launched for each individual application that uses a network or Internet connection.
Options for accessing the "Task Manager"
Now another important question about how to cancel a task on a computer. Many users, when a program freezes, immediately try to use the standard three-finger combination. But this only causes a third-party screen to appear with a logout and re-login upon confirmation.

To solve the issue of how to remove a task on the computer when calling the "Task Manager" in a simpler way, you should use the combination Ctrl + Shift + Esc. But the best option, and completely trouble-free, is to call the console through the menu"Run", where the taskmgr line is written. In this case, the user gets access to terminate processes on the running system.
Epilogue
As a rule, the question of how to remove a task on a computer using the "Task Manager" is solved quite simply. Another thing is the background services that start with the system. They "eat" a lot of RAM, whether you like it or not. Unwanted services can simply be disabled in the programs and components section (for example, printing if the system does not have a printer installed), or use automated utilities like Windows Manager, which are able to independently determine the degree of system load and disable unnecessary tools. At the same time, the user himself does not take any special part in the process of deleting tasks (well, perhaps only confirmation of some cleaning actions).
It remains to be said that the forced termination of tasks and programs on the computer is a thankless task. The price of the issue is the performance of the entire system. When removing some tasks, the OS may simply crash, after which a forced reboot and recovery using a checkpoint will follow. What if there isn't one? Don't even try to delete your backups here.