Diagnostic for laptop with various symptoms

  dude 14:41 25 Jan 2019

I have a 5 years old 1st gen Lenovo Yoga with Windows 8 64-bit.

These last days, I started experiencing problems such as:

  • Keyboard and power button did not allow to get the computer out of sleep
  • Laptop shuts off randomly and/or right after unplugging power cable
  • Keyboard, trackpad, power button and closing the laptop become inactive and I have to force stop
  • Sometimes, the keyboard becomes inactive and 2 seconds later, the computer turns itself off, but not always
  • Surprisingly enough, if I use a wireless USB keyboard, I don't encounter the problem, but if I start using the laptop keyboard, the problem of inactive keyboard/trackpad/power button comes after a minute or so
  • Wireless external mouse remains active when keyboard, trackpad and laptop buttons become inactive

To be noted as well: - Windows 8 was never reinstalled in 5 years, but I'm generally very careful with what I install - Laptop did not experience a shock or humidity recently - A Windows update was announced a couple of days before these problems started and the computer started having these problems before I restarted to let the update be installed - I visited some torrent website and had a couple of warnings from my Anti-virus, Ijust let it scan itself - I was in Iran recently, which is notorious for viruses - The battery has a good autonomy

What I already tried: - Check if keyboard and trackpad are allowed to get computer out of sleep in Device manager - Reset "Balanced" plan in Power options - Thoroughly clean fan area and keyboard with an air compressor - Run full anti-virus system scan - Tried Windows repair tool

Does that ring a bell?


  Fruit Bat /\0/\ 16:47 25 Jan 2019

Have you tried a system restore to before you were in Iran?

What is Markdown?

Markdown lets you add more formatting to your post. Simply type in your post and it will display as written.

If you wish to add bold or italic characters, add a hyperlink to another website, a heading or a horizontal line, simply use the relevent icons above the text input field.

A preview of your post will appear in the grey box below. If you make a change and you're not happy, simply press the back arrow icon to undo.

Post a Reply


Elsewhere on IDG sites

EE 5G review: How fast is 5G in the UK?

The Best 404 Page Designs: from delightful illustrations to time-wasting games

Powerbeats Pro review

Que faire si le son de votre Mac ne fonctionne plus ?