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My laptop has some serious issues with performance. The specifications of my laptop:

 Lenovo Y50-70
 RAM: 16GB
 CPU: Intel i7-4710HQ @2.5GHz
 Graphics: GeForce GTX 860M 4GB

First I should mention that I am a responsible user and give attention to the maintenance of my PC. Below I list some of the problems:

  • Ctrl+ left arrow, Ctrl+right arrow to mark a text has a delay which varies from zero to 0.5 sec (0.5 sec is such a huge time)
  • Ctrl+PageUp, etc. in every browser to change from tab to tab has delay. Furthermore, when the tab goes to the desired I see the previous frame of this tab for about 0.5 sec. I understand that when I have a YouTube video. It's like having the last frame of the previous time I was in this tab.
  • Delay when closing a tab.
  • Google maps are really really slow. There is a huge delay when moving the map.
  • I have noticed that videos that pop-up (for example, trailers from IMDB) are lagging too much. Another example, when I watch videos in Udemy, an online platform for courses with videos, the video and the sound are not synchronized (I have tested it in other laptops and there wasn't this audio unsynchronized with video).
  • When making a window bigger there is delay to display the whole image of the tab in a browser. Example:

enter image description here
(Click image to enlarge)

Additional notes:

  • I also have to mention that when I made a format it seems that the problem was gone, but a week later the same problems reoccurred. (I repeatedly formatted 3 times with the same results).
  • I do not download or visit any kind of suspicious files/websites.
  • In Device Manager all the devices' status are 'this device is working properly'.(I don't trust it, but I had to mention it also). A screanshot of the taskmanager jobs and activity: enter image description here

Everything seems ok here...

The specifications of the laptop indicate that this is a really good laptop, but there are times that I use my old laptop (Core i5 with 4GB RAM). Do you have any advice about in what direction to move to troubleshoot the bad functionality of my laptop? Is it a software problem or a hardware problem?

Note: Both Windows 8.1 and Windows 10 have this problem.

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  • Did this start around the time you upgraded to Windows 10?
    – Mooseman
    Commented Jan 14, 2016 at 20:10
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    No. Both Windows 8.1 and Windows 10 had that problem.
    – Mpizos Dimitris
    Commented Jan 14, 2016 at 20:11
  • Have you freshly installed Windows since the problem started?
    – Mooseman
    Commented Jan 14, 2016 at 20:15
  • I am not sure if I understand your last question. I have formatted my laptop couples of times. The problem disappears but appears a period after.
    – Mpizos Dimitris
    Commented Jan 14, 2016 at 20:19
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    Most of your problems sound browser related, but you've not told us what browser you use or what extensions you install. Additionally do you have any antivirus or other software installed?
    – Mokubai ♦
    Commented Jan 14, 2016 at 20:34

1 Answer 1

Reset to default
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i've seen this on lenovos. try upgrading the bios as a starter. If you have an SSD, make sure the bios is set to SSD to reflect it, and upgrade firmware for SSD

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  • There is an 8GB ssd disk. Can you be more explicit by what you mean 'ugrading the bios as a starter'? And how to set my bios in SSD?
    – Mpizos Dimitris
    Commented Jan 14, 2016 at 20:45
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    check here and download the bios update util: support.lenovo.com/gb/en/products/Laptops-and-netbooks/…. Look in the bios for a setting called "Storage" or something similar and set the mode to SSD. IF you can't find it, then it could be that your bios is locked by lenovo, so don't worry about it, otherwise, you can unlock your bios - see this thread bios-mods.com/forum/Thread-unlock-advanced-menu-lenovo-y50-70 which will unlock all your menus etc and give you a performance hit .
    – Pingers
    Commented Jan 14, 2016 at 20:52
  • you also need to track down a firmware update utility for your SSD. They can reduce laptops to snail pace. Make sure your SSD is fully up to date. Pingers.
    – Pingers
    Commented Jan 14, 2016 at 20:57
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    The 8GB is a cache. What Pingers is suggesting is replacing the main system drive with a SSD
    – Ramhound
    Commented Jan 14, 2016 at 21:58
  • an update: Changed the hybrid hard drive to SSD. same problems after a week of usage.. :/
    – Mpizos Dimitris
    Commented Feb 20, 2017 at 10:47

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