It runs very slowly after turning on the computer, at which point the CPU takes up 100 5

After the machine starts, click run and enter msconfig, and turn off all the useless ones in the startup. Then reboot. It is very likely that there are too many programs to run on the boot. There's no more a virus. Kill with a good piece of software. Kill in safe mode.

There is a bug in a virus program or application.

When did this start? What software did you install during this time? Try it out!

If not, it may be computer poisoning!

Have fun!

It's probably that the computer is automatically logged in when it is turned on.,It's good not to let them turn on automatically.。 It can be set in the "Options" section of the software, and the optimizer can also be used.

There are many reasons why the CPU of the computer is too high, it may be caused by a large number of plug-ins installed on the computer system, or it may be a large number of worms.

If the CPU usage of the system is too high due to rapid replication within the system, we need to find the cause of the high CPU in order to effectively and reasonably solve the problem and restore the normal state of the system.

Solution; <>

Cause 1: Virus Trojans.

A large number of worms replicate rapidly within the system, resulting in a high CPU resource usage rate.

Workaround: Use a reliable antivirus.

Clean the system memory and local hard disk thoroughly, and open the system settings software to check for abnormal startup programs. Frequently update and upgrade anti-virus software and firewalls, strengthen anti-virus awareness, and master the correct anti-virus knowledge.

Reason 2: Running large programs, games, etc.

In many cases, the high CPU usage is caused by large programs, such as large 3D games that occupy a lot of CPU, there are no more than two reasons, one is that the CPU usage is increased due to unreasonable programs (generally games are tested, so this situation should not be common), and the other is computer configuration.

Too low (this should be the main reason).

The solution: It's very simple, either don't play this kind of game, or change to a high-end computer.

Reason 3: A large number of proliferating drivers.

The driver is not authenticated, resulting in 100% CPU resource usage. A large number of beta drivers are flooding the web, creating a cause of failures that are difficult to find.

Solution: Please try to use the official version of the driver, or the driver wizard.

Cause 4: There are too many disk fragments.

When we use the computer, we often install and uninstall software, copy and delete documents, which will make the data in the hard disk intermittent or very scattered, so that the computer will slow down when searching, thus occupying a lot of CPU.

Reason 5: There are too many startup items on your computer.

Too many startup items on your computer is one of the reasons for high CPU usage, so we first need to reduce unnecessary startup items on your computer.

Solution: Press Win+R on the keyboard to open "Run", enter "msconfig" in the run window, press Enter, click the startup option above in the pop-up system configuration window, and click to open Task Manager.

Then choose to disable some startup items that you feel are unnecessary.

<> other reasons, it is recommended to frequently clean up the computer junk and viruses, plug-ins, etc., and develop the correct habit of maintaining the computer.