My machine is always 100 CPU, but I don t have any programs running, why?

If the reboot doesn't work, follow the steps below.

Open Task Manager - Processes to remember that the process on which the CPU usage is 100% is 100%.

Then run ntsd -c q -p pid (the one that occupies 100% of the CPU) to press enter.

First of all, use the software of Windows Optimizer to optimize it. If the effect is not good, you have to see if the machine has been infected with a virus? It is recommended that you first check for viruses in safe mode.

If the problem persists, you're better off looking for a professional.

Reinstall the system, or perform anti-virus.

You look at the task manager to see which process is taking up the most, and if so, ......Let's talk about it if so.

It is recommended to kill the virus in safe mode, if it doesn't work, go to DOS to kill it.

1. It is likely that there is a virus in the computer. You take a look at the whole antivirus.

Second, to rule out viruses, you consider whether there is a driver incompatible caused by it. For example, the graphics card driver or something? There is also what kind of graphics card is used, calculate the power.

3. Check the direction of the case fan, will it be reversed? Clean up the dust inside. Looking at the temperature of the motherboard's north bridge and the temperature of the power module, it is very likely that the air duct is not good.

Generally speaking, if the fan is used for a long time, the fan speed slows down or simply does not rotate, which will cause problems for heat dissipation.

Fourth, check whether the coated silicone is dry? Especially AMD CPUs, silicone coated and uncoated are completely two concepts! And whether your installation is in place, if the installation is not good, the heat dissipation effect will not be good.

If there is a background running program, or a virus is riddled with viruses, it is recommended to use antivirus, and it is recommended to use 360 Security Guard to clean up the plugin

If you don't understand the process, let's play the system.

Open Task Manager to see what processes consume so much CPU, and system processes generally do not consume so much CPU.

CPU performance is not good, mainly depends on the main frequency and cache capacity.

And memory is also a factor.

There are also viruses that can cause this problem.

Clean up your computer! There may be too many junk files!

1 is a virus.

2. There are too many hard disk junk files, fragmented files, and so many files.

This is normal.

When the computer first starts running, the CPU usage of the system is relatively high, because some applications will run in the background, and at the same time help you prepare the environment required for other software to run, so at this time you see that the CPU utilization rate of 20% is actually not high.

But if you find that the CPU is still at 20% after about 10 minutes without any other software, there may be some programs running in the background all the time, you can use the task manager to check it, if it is not a useful program, just kill it manually.

First of all, please upgrade the killing soft and kill the whole filial piety. Silver Shen dressed.

If it is not solved, you can: 1. Open "Run" 2, enter "msconfig" and press enter3. Uncheck the items you don't want to start automatically in your computer in the "Enable" tab.

If it hasn't been solved, it is recommended to reinstall the system (Microsoft's NT kernel system is very strange, once reinstalled, many problems will be solved).

You may be poisoned in your system, use CHRL Alt del to open the task manager, see if the process is occupying more CPU, find out what kind of program that process is using Baidu, and use the software to kill the virus.

Check for viruses first! There is a high probability of a virus!

It is usually a manifestation of intoxication.