why does my laptop freeze and buzz
From the screenshot above, it appears to be an issue with video drivers. You may follow the steps below to uninstall and re-install the video drivers on your computer: Click on ÁStartÁ and right click on ÁComputerÁ. Click on ÁManageÁ. Click on ÁDevice ManagerÁ. Under ÁDisplay adaptersÁ, you will find the video driver listed. Right click on it and click on ÁuninstallÁ. (Check and make a note of the driver installed on your system and re-install the driver from the below steps accordingly). Check the box to delete the software. Restart your system and click on the link: Enter the Service Tag of your system and select the operating system. You will find the video driver under ÁVideoÁ. Click on the video driver depending on the video card your system has. (Install the same video driver which you uninstalled from ÁDevice ManagerÁ.
Click on ÁDownload FileÁ. Select ÁFor Single File Download via BrowserÁ. Click on ÁDownload NowÁ. Save the driver on your desktop. Once the driver is saved on desktop, right click on it and select ÁRun as administratorÁ. Install the video driver by following the on screen instructions. Check if the issue is resolved or not. If the issue still persists, update the system BIOS. Note: Make sure the ac adapter is connected and the battery is charged 10% or above to update the BIOS. Also, disconnect all the external peripherals before updating the BIOS. All the programs should be closed and documents saved. Click on the below link: Enter the Service Tag of your system and select the operating system. Go to ÁBIOSÁ and click on the BIOS available. Click on ÁDownload FileÁ. Select ÁFor Single File Download via BrowserÁ. Click on ÁDownload NowÁ.
Save the BIOS on your desktop. Once the BIOS is downloaded on the desktop, right click on it and select ÁRun as administratorÁ. Follow the prompts on screen and restart your computer. Please share the findings. Could be a defective graphics driver or the graphics chip. First lets check the Windows operating system to insure it is not corrupted then if these two checks pass you will need to go to your laptops support site and download and install the latest graphics driver. 1) Open a command Prompt by right clicking and select 'Run as Administrator' and then at the command prompt type: chkdsk /f /r then press the enter key. If prompted to schedule the volume to be checked the next time the system restarts, 2) Run the SFC /SCANNOW command. This will check and repair if necessary any critical Windows system files. Right click on Command Prompt option and select 'Run as administrator'.
How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC. exe) program generates in Windows Vista: ================= Device drivers ========================= Go to your computer manufacture's support web site and check for Windows 7 drivers for your specific model number. If there are no drivers your PC may not function properly (No LAN or Wireless Internet access, Audio, USB, Etc. ) after installing Windows 7. If there are Windows 7 drivers, then download to a folder on your hard drive and install all of them, starting with the Motherboard/chipset drivers, LAN, Audio, USB, Graphics, SATA, Webcam, Etc. , and so on. If you have an Intel motherboard you can try the Intel Driver Update Utility: Vista: Check the Graphics card manufacture's download site for the most recent Windows 7 drivers for your card. ATI: NVIDIA: J W Stuart:
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