High CPU on Windows 11 System (Ntoskrnl) due to Bitdefender

For a few weeks I have suffered very high CPU usage on a new HP laptop i5 11th Generation running Windows 11. The system process (ntoskrnl) was causing this high CPU usage. It also drained the battery from 100% till empty in 30 minutes. The first 2 months it was running fine.

Finally found that after uninstalling Bitdefender the CPU went back to normal. Although the processes of Bitdefender seems not be using high CPU in the task manager. Can you please tell me if this a problem currently?

Answers

  • Hello.

    First, take screenshot(s) of the issue(s) and create a log on your PC/laptop using Bitdefender Support Tool, by following these steps:

    Next, contact Bitdefender Consumer Support by e-mail here (scroll down to the bottom of the page):

    with short description of the issue(s).

    After that, you will get an automated reply by the Bitdefender Customer Care Team, with your ticket number.

    Now, in reply to that automated reply, you can send the screenshot(s) you already took and the log file you already created in the first step.

    Since you are all done, just wait for the support engineers to investigate your issue(s) and find solution(s) to fix the issue(s).

    Remember that the screeshot(s) and the log file will help a lot to the support engineers for better and faster investigation on your issue(s) and finding solution(s).

    Regards.