Use Windows 7 CPU to 100% only when it is plugged

I post this topic only because my problem is quiet unusual. I found hundreds of topics related to 100% CPU usage in Windows 7, but none of them was related to this over-consumption of the processor during the charging of the battery. There is also a situation that 100% of CPU usage occurs while working on the battery, but my case is completely the opposite.

Windows 7 x 64 prof. system goes to 100% CPU use occasionally and it becomes impossible to work. then all of a sudden, the problem goes away and everything works right. After a few days of work without problem the problem returns and so on. I did the fresh install several times and the problem appeared immediately after the installation of the system every time. Finally, I discovered, that it lasts only when the charger is plugged in when you are working on the battery, everything works correctly. pluggng immediately after the CPU reaches 100% usage and so on.

laptop HP Compaq 6710 b, Windows 7 x 64-teacher system.

Help!

Hello once again, Andre. Thank you for helping me. I tried to find such a framework (high precision event Timer) in my BIOS, but I did not: it seems to be fixed on my laptop. However, I found it in my Windows Device Manager and I have disabled HPET here, but it did not help in any case - there is no change in the use of the CPU (always 100%).

BUT - I found an effective solution on my own! The thing was very simple - it was the fault of my power cord to the AC adapter / CC. I tried my colleague adapter and CPU usage dropped sharply to 5-10% on idle. Then I plugged my power adapter - use has exploded to 100%, and again, I used my colleague adapter - use declined.

THE REASON FOR THE HIGH IN MY CASE CPU USAGE WAS DEFECTIVE AC ADAPTER

It was a big surprise for me, because the problem occurred only from time to time. Apart from this, the laptop work properly. I tried hundreds of things, including the reinstallation of the system 3 times, change a hard drive (which seemed to make some strange sounds), my memory test, install the latest drivers from HP, change settings loading, etc. Only after buying a new battery (the old one was not operation at all) I noticed that the problem goes away after unplugging the AC adapter.

I lost a lot of time trying to solve this problem and it was very frustrating, I also found that a lot of people have similar problems, so if you, dear reader, have 100% CPU use problem, unplugg your power adapter first know, that it's abandoned.

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