My computer doesn't have a mouse when playing games

Low throw and high suction _ 1976 [purple MSI] Most mouse problems are the problems of the mouse itself. You need to go to another computer to do the test. First of all, eliminate the problem of the mouse itself. If it is a system problem, please repair the system (repair the driver that comes with the system). 1. Press F8 to enter safe mode, and then exit. Select restart or shutdown to start, and then you can enter normal mode (repair the registry). 2. If the fault still exists, please use the system that comes with the system to recover until there is no such fault (if the normal mode recovery fails, please press F8 to enter the safe mode and use the system recovery). 3. If the fault remains, use the system disk to repair it, open the command prompt and enter SFC/SCANNOW(SFC and/) to insert it into the original system disk repair system, and the system will automatically compare and repair it. 4. If the fault still exists, set the optical drive as the first boot device in the BIOS, insert the system installation disk, and press the R key to select "Repair Installation". 5. If the fault still exists, it is recommended to reinstall the operating system. Common fault diagnosis methods of optical mouse (I) Optical mouse faults mainly include: mouse button failure, mouse can't be found, poor sensitivity, inaccurate mouse positioning or frequent unreasonable drift. More than 90% of the failures of optical mouse are broken wires, poor key contact and dirty optical system, but there are also cases of virtual welding and factory damage. (1) Cable core disconnection is mainly caused by the fixed cursor, sometimes good or bad, touching the connection with hands and shaking the cursor. Generally speaking, wire breakage occurs in places that are often bent, such as plugs or cable leads. At this time, the sheath is intact, which can't be seen from the surface and needs to be measured with a multimeter. The troubleshooting method of cable core wire breakage is as follows: disassemble the mouse, unplug the cable plug from the circuit board, mark it according to the corresponding relationship between the color of the core wire and the pin, then cut off the core wire about 5cm-6cm according to the broken position, and then reconnect the mouse core wire. (2) Key failures are mostly caused by broken reed or poor internal contact in microswitch, which can be repaired by replacing another key. The replacement method is: weld the left mouse button and middle mouse button with an electric soldering iron, and weld the removed middle mouse button back to the left position. (3) The poor sensitivity is a common problem of optical mouse, which is manifested in that when moving the mouse, the cursor reacts late and does not listen to commands. The main causes of poor sensitivity are aging of light-emitting tubes or photosensitive elements, deviation of photoelectric receiving system, misalignment of focal length, influence of external light, pollution of lens channel and so on. For the failure caused by the aging of LED or photosensitive element, the LED or photosensitive element of the same model can be replaced. When the photoelectric receiving system is offset and the focal length is misaligned, the position of the LED can be adjusted to restore it to its original position until the cursor moves in the horizontal and vertical directions. For the failure caused by the influence of external light, black paper covering the exposed part of the lens assembly can be repositioned. If the lens channel is polluted and the light cannot reach smoothly, you can scrub the surfaces of LED, lens, reflector and photosensitive tube with anhydrous alcohol. (4) Mouse positioning is inaccurate or it often drifts for no reason, which is mainly affected by stray light, interference pulse in the circuit, crystal oscillator or poor IC quality. If the mouse is not positioned correctly or often drifts for no reason, first check the solder joints of the circuit, especially some vulnerable parts, and repair the solder joints with an electric soldering iron after discovering the virtual solder joints. If there is no virtual welding, check whether the crystal oscillator is normal. If not, just replace the crystal oscillator. (5) The system can't find the diagnosis method of the mouse. The main reasons why the system can't find the mouse are mouse damage, poor contact between the mouse and the host, mouse interface damage on the motherboard and mouse driver damage. The system can't find the mouse. The troubleshooting method is as follows: first enter the safe mode, then restart the computer or repair the mouse driver by restoring the registry. If the problem is not solved, it may be poor contact or hardware damage. You can connect the mouse to another computer for testing. Generally, the damaged mouse can be replaced directly.