Description of the problem: Analysis of the reasons why the camera video automatically turned off and quit: 1.
camera problem 2. Virus, QQ version 3.
The camera driver is extremely simple: 36 Security Guard-Software Manager-Search Driver Life Installation-Run Driver Life-Driver Management-Driver Unloading-Start Unloading-Restart Computer-Open Driver Life-Basic Information-One-click Processing-Restart Computer QQ Video Adjustment Wizard-Video Settings-Down Triangle-Camera Solution: Scheme 1: First check whether there is any problem with the camera. For example, the connection interface can be put on other computers to try.
scheme 2: scan with anti-virus software. If it is not poisonous, upgrade the QQ version. Scheme 3: Abnormal camera driver 1. Open 36 Security Guard-Software Manager-Input Drives Life-Click Search-Click Download.
(as shown in Figure 1) Figure 12. Installation steps: Click Next-Next-Next-Next-Finish.
3。 After checking the basic information-click Driver Management-Driver Unloading-start unloading.
(as shown in Figure 2) Figure 24. Then unplug the camera, restart the system (just restart the built-in camera in the notebook), and then click Drive Life-Basic Information-One-click Processing-restart the computer.
(as shown in Figure 3) Scheme 4 of Figure 3: The power supply of the USB interface of the motherboard is insufficient. It is suggested that the camera should be connected to the USB interface of the motherboard behind the chassis as much as possible, and there may be problems such as insufficient power supply when using the front USB interface. Scheme 5: The computer is equipped with other video input devices, such as TV cards, etc. If the video input devices such as TV cards are used as video sources in QQ video settings, the system may restart or crash when the video is connected.
1。 QQ Video Adjustment Wizard-Video Settings-Down Triangle-Camera.
(as shown in Figure 4 and 5) Figure 4 and Figure 5.
2. What happened when the laptop's camera suddenly lit up while surfing the Internet?
If you didn't accidentally turn it on yourself, your computer was treated as a chicken, that is, it was a trojan horse. As long as your computer is turned on, others will remotely control your computer and find what they want from your computer. It's best not to point the computer at your bed, or you won't know it if it is broadcast live.
solution: 1. install powerful anti-virus software, such as Kaspersky, or something else, preferably the kind that charges, and then completely kill the virus.
2. Reinstall the system. After all the disks are formatted
After antivirus or reinstalling the system, you must protect your computer. When inserting the USB flash drive, you must disinfect it first. Don't open those bad websites. If there is no big loss, it will be ok. Don't worry!
3. What happened when the camera light suddenly turned on by itself?
I don't know if it is, but I found an answer for you in Baidu. Please take a look at it first.
Reason 1: The camera is started when it is turned on. Solution: Find the startup item of the camera in the 1.36 boot acceleration and turn it off: 2. Use the startup management that comes with the computer to start-run-enter MSConfig-
Reason 2: Poisoning. You have to check the poison yourself.
This is a way to check whether it is poisoned.
Amcap is a full-featured, small and powerful video capture program, which is most commonly used for video capture by computer cameras.
service socpc-camera @-support program c: \ windows \ system32 \ drivers \ pfc27.sys
it is very likely that malicious trojans cause amcap to keep jumping out. test process: after disconnecting the network, close amcap in the task manager, and then check whether there are suspicious processes, such as pfc27.exe. Then restart the computer when the network is disconnected, and then observe whether there is any amcap program running, and if there is, kill the virus.
I'll see where the program is ... =
4. What should I do if my computer's camera suddenly doesn't work today?
Try another USB port behind the motherboard.
Unplug it. Plug it back in and see if there is any reaction. Are you prompted to find new hardware? Ask you to install? If there is, it is estimated that your driver is not installed. Make it unusable. Put the driver CD of the camera head into the CD-ROM drive. Click Next to install it. If there is no response when plugged in, then turn on my computer to see if there is a camera head in it. If there is none, it is estimated that there is something wrong with your USB port or your camera head. Try another one! If you have two cameras, you can exchange them. Can you find this picture? Right-click the desktop "Computer"-"Properties"--If the device manager does not find anything like the one above, or an exclamation point. Then there is something wrong with your driver or camera head. Take a look at it first.
5. Why does the camera of my laptop suddenly fail to turn on?
The computer can't start.
I usually check like this.
Now I don't know where the specific problem is and there is no alarm sound, so let's consider the simplest problem first.
For example, the memory stick is loose, or the motherboard can't recognize the memory because of the oxidation of the golden finger. At this time, unplug the memory stick. After wiping, plug it in
and start the computer. Generally, this will solve the problem.
If it doesn't work, if you have an independent graphics card, you can also wipe your golden finger after unplugging it. If the motherboard has an integrated vga interface, you can use the graphics card interface of the motherboard and plug in the graphics card after judging the problem.
If the memory graphics card can't solve the problem after wiping, don't panic. You can take down the S battery on the motherboard and turn off the power. Install it after a few minutes.
Sometimes the S configuration changes due to hardware changes, which may also lead to the failure to turn on the machine.
If all these fail, we should consider the problems of the motherboard or cpu.
Check whether the power supply of the CPU is normal first.
There are two situations in which the computer can't boot into the system: the self-test has hardware problems, and the self-test can't get into the desktop, which is a system or driver problem.
1.
in the case of eliminating the virus, it is usually because GHOST version or other modified operating system is installed. Because a large number of drivers that are not suitable for your hardware devices are integrated in advance, the system can't correctly identify and load the hardware devices necessary for the system.
This kind of error can be corrected by downloading and installing the operating system with the original image installation version and installing all drivers with Microsoft WHQL certification.
If you don't want to reinstall, try to boot F8 into safe mode and uninstall the incompatible drivers of the hardware devices (that is, right-click the device in the device manager) > Attribute > There is no > Digital signature program >: The driver of Microsoft Windows Hardware Patency Publisher), after automatically identifying the hardware device at startup, reinstall the driver (WHQL) that you downloaded and has passed the Microsoft digital signature authentication. Then restart the computer again to see if there is any improvement.
Then there is software with duplicate functions in the system, which causes conflicts (for example, two or more software killers and firewalls are installed, and advertisements are blocked).
If it is confirmed that it is not a system or software problem, you need to test the hardware in the following order, first, the memory is the most likely, then the CPU, then the hard disk, and finally the graphics card, and the motherboard will basically not have a blue screen.
In addition, it is necessary to check whether the machine is overheated due to poor heat dissipation (if it is, a stronger radiator must be installed, thermal conductive silicone grease must be repainted, and a powerful fan must be replaced).
Check whether the motherboard capacitor bulges at the top (if it is, it must be replaced immediately).
It is also necessary to check whether the output voltage is unstable due to insufficient power supply of the chassis (if it is, it must be replaced immediately)
If the power-on self-test fails, it cannot be heard. There must be a hardware fault, so it is necessary to make a preliminary judgment by the alarm sound of the small horn (buzzer) in order to narrow down the scope of the hardware fault. Please refer to your motherboard manual for the specific meaning of the startup alarm sound.
2. If the self-test fails, there must be a hardware fault:
What should I do if the computer does not hear a "drip" sound after self-test?
After the computer is started, the self-check fails, but if you don't hear a drip, there must be a hardware failure.
The following aspects need to be eliminated and checked:
1. The system time cannot be displayed and saved correctly, which is caused by the lack of battery power on the motherboard. Replace a new motherboard battery and press DEL key to enter the BIOS to reset the correct system time. This kind of fault can be solved.
2. Check whether the motherboard capacitor bulges or leaks. If so, you need to replace the motherboard capacitor in a professional computer maintenance place.
3. Unplug the memory stick, wipe the golden finger with an eraser and plug it back into the memory slot.
4. Plug all the hardware and connecting wires firmly again to avoid virtual connection.
5. Start with the chassis open. If it is abnormal, it needs to be replaced.
6. Check whether the power supply of the chassis is insufficient. If there is a replacement power supply at hand, try it.
7. Check the BIOS to see if you can identify the hard disk.
8. There is no signal on the display, and check the connection of the display part. The black screen or flower screen of the display may be the problem of the graphics card or the display itself.
9. According to the alarm sound of the small horn (buzzer) of the boot chassis combined with your specific BIOS, in order to narrow down the scope of the problem. Please refer to your motherboard manual for the specific meaning of the boot alarm sound.
1. That's all I can think of for the time being. Other components are also checked step by step by using the substitution method or the minimum loading method.
6. The computer suddenly fails to turn on when the camera is unplugged
The reasons and solutions of the computer's failure to turn on the computer:
1. Check whether the monitor is connected to the host cable and connector normally;
2. If the system starts normally, you can check whether the button above the keyboard for turning off the power switch when the display screen is closed is normal. If the power switch of the display and the pop-up display screen is fine, but the display screen cannot display, it may be a system problem;
3. Check whether the display is black when dos boots. If the display is black when DOS boots and no normal self-test sound is emitted, it is mostly a system failure.
4. The BIOS startup disk is set incorrectly. Solution: Press F2/F1/F12/Delete (depending on the motherboard) to enter the BIOS, change the USB of the First Boot Device of the first boot item to Hard Deice and press F1-Y in turn to save the settings;
5. Hard disk MBR error can be reset with DiskGenius;
6. Take out external devices such as CD-ROM drive, USB flash drive and floppy disk and try to turn it on;
7. press F8 to enter the mode, and select the last correct configuration or normal startup;
8. Dismantle the chassis of the desktop computer, unplug the hard disk cable and reconnect it to see if it can be started; Pay attention to whether the hard disk rotates normally during the boot process and touch it with your hand;
9. Universal method: reinstall the system.