Windows 7 Windows 8 Windows Vista Windows XP

Fix :Flickering Lines across the Computer Screen within Windows 8, 7, Vista, XP , any OS

After reading this article you will be able to solve the problem where corruption occurs on your screen or you see lines across your computer display. This problem might occur due to a Display driver problem, a display hardware error, Display connection cable problem or even a faulty display. If it’s a laptop & lines occur when you move your screen ( hinges move ), it could very well be the display cable problem connecting your motherboard/display adapter to your screen.

Follow these steps to resolve the issue:

  • Go to, control panel & locate programs & features or simply type Uninstall a program.
  • From the list therein, locate the display driver with the help of the example screen shot given below:




  • Apart from the above examples, you can have a nVidia Display adapter as well. Select the appropriate program from the list following the screenshots above and click on uninstall.
  • Restart your computer
  • Now, Go to the Support website of either your computer manufacturer/Motherboard manufacturer or if you have a add-on Display adapter ( Graphics Card ), go to the Gfx Card Manufacturers support website.
    Example: or etc.
  • OR , to get latest drivers you can use WINDOWS UPDATE
  • To run Windows Update, Go to start menu & in the start menu search box, type Windows Update & press Enter.


  • Refer the above screenshot, you can either press Check for updates on the Top left hand corner or directly click on optional updates to check if new hardware drivers are available for your computer system.

If This does not solve your issue,

For Desktop Computer Systems

  • If you have a Add-on Graphics Adapter Installed, try pulling it out and checking the display on your on-board display option. If you do not have a motherboard with a on-board display, get another card to check if that works or try reseating your present graphics adapter properly into the slot.
  • Check the Display Cable ( Any type ) for damage. Also check both ends of the cable to make sure they are properly plugged in.
  • Check your Display Monitor with another computer of laptop device to make sure you don’t have a problem with your Display.
  • You can alternatively try to plug another monitor into your computer to check if that works properly.

For Laptop ( All portable Computers )

  • Take out your laptop battery, press & hold your power button for a few seconds.
  • Reinsert the battery into the compartment & check if the problem persists.
  • If your laptop shows lines across the screen when you move the display panel ( move the hinges to adjust the display ) then your cable connecting your display to motherboard/display adapter might be wearing out, in this case the only recommended solution is to take the computer to a authorized dealership or support outlet.


  • Your Computer monitor might display some lines across the screen if there is a power surge or when the power input is lower or higher than the recommended range your monitor supports (Most of the time LOWER ), Check the documentation that came with your monitor to confirm the recommended power input.
Windows 7 Windows 8 Windows Vista Windows XP

Fix : Windows : No sound problem in Windows 7 , Vista , XP

There can be a number of reasons if your computer doesn’t play any sound at all. Sounds include Windows basic sounds, music etc.

What to Check:

  • Sound Hardware is present or not
  • Device Drivers are installed or not
  • Speakers/Headphones wires are connected properly
  • Check if mute button is pressed
  • Sound/Audio Hardware is Enabled from BIOS

Sound Hardware/ Sound Card:

Sound Hardware is commonly known as sound card. If you have a desktop system & have installed a add-on sound card for high performing sound, the first step would be to open the cabinet and check if the sound card is installed into the slot properly.

If you have a laptop ( notebook/netbook/ultra book), there are very slight chances that you have a Add-on Sound card installed.

To Check the sound card from within windows:

Go to Device Manager,

To open Device Manager:

Control panel –> small icons –> Device Manager,
type device manager directly into the start menu search box ( Windows 7 only ) 

See the below screenshot and check if the sound, video & game controllers shows your Audio hardware installed.

device manager


To Check if Device Drivers are Installed or not

If you see a Exclamation mark on any listed hardware or see a yellow question mark saying other devices, it is quite possible that either the device drivers that are installed for your device are faulty or there are no drivers installed.

To resolve, right click the hardware listed either in other devices or with an exclamation mark & click on update drivers & let Windows search the Windows Update service for any new drivers that might be available for your device type.

You can also visit your computer manufacturers support website & try downloading the drivers from there. * refer your computer documentation.

If you see no hardware present within the sound, video & game controllers, you should try pressing the Scan for hardware changes button just below help ( refer screenshot above). If there is no response from the device manager after refreshing you might be facing a hardware issue or Your Audio Hardware might be disabled from your BIOS options. ( To enable/ check BIOS settings go to the end of this page).

To Check if Speakers/Headphone wires are connected properly

There is no special guide relevant for this, but if you really don’t know how to check a loose connection, follow the wires connecting your computer to your speakers/headphones and vice-versa. Tighten if loose.

Check if the wires are plugged into correct slot

if you are using a desktop PC, see the image below and confirm all the wires are plugged into the right slot.

sound back panel desktop

Also, check for faulty speakers/Headphones.

Check if the mute button is pressed

Sometimes a hotkey or otherwise the mute key gets activated and we just don’t pay attention to the muted volume button in the taskbar. refer images below





If you see the muted icon in your taskbar click on it to unmute. Also check the volume level and increase if necessary.

Check if Sound/Audio Hardware is Enabled from BIOS

To do this, refer your motherboard/system maintenance manual & looks for things given below:

  • Press Del or F2 or F10 or any other key depending on your system type & make
  • Advanced Options/ Integrated Peripherals
  • Enable Onboard Audio/ AC’97/HD Audio
  • Enable it
  • F10 ( Save & Exit )

Microsoft Fix it Troubleshooter

To run a sound playback troubleshooter



To run a hardware and devices troubleshooter