1. I am experiencing high CPU usage.
2. Keyboard accepts keys after pressing a key for around 7 seconds.
3. Battery has stopped charging.
4. When the laptop is shut down 'Power Meter' of control panel is shown to be not responding which hasn't been started by me.
Screenshots of my Task Manager:
Solutions tried till now:
1. Windows reinstalled after formatting the partition.
2. Antivirus updated and complete hard disk scanned.
3. Keyboard accessibility options verified.