How to solve keyboard failure after computer enters system

Yesterday installed a game, playing play, the mouse on the problem, wandering around, disorderly things, as if the left and right, like the initiative to press the same, restart, after the normal after the reboot, but, after a while, the above situation, my mouse is not a USB interface, and then added a USB interface after the mouse, Is USB can be used, not USB or not, however, after a while, USB that mouse is also the case, today, found that the situation will not happen, but, press the keyboard (not USB), the host bbbbbbb rang, press, ring, sometimes can be used, sometimes can not, Now the keyboard is not used, however, before entering the window Bois can enter, Safe mode into the keyboard can not be used, in short, enter the window can not be used.

Here, I bought the assembly computer, is a friend of mine to help me install the computer, at that time the computer configuration is not bad, is a dual-core configuration.

　　Netizen Analysis Answer:

1. Reload system is only formatted C disk is not another disk has a virus Ah! For a few anti-virus software to kill.

2. Is there a key to the keyboard? Clean up, or replace the test, second, scanning clean up the system whether the malicious program, virus-related.

3. May be some virus infection files to delete, antivirus or use 360 first aid kit to see if there are files have been modified.

4. Possible system problems, reload ... (The least desirable method, or perhaps the only one).