ComputerDok – Computer Tips, Windows Guides, & Tech Tutorials

Hard Drive Sometimes your computer is noticeably slower or programs "hang" when you access certain files. This problem might occur because there are errors on your hard disk drive. You can troubleshoot the problem by using the Disk Check tool in Windows 7. Disk Check can identify and automatically correct file system errors and make sure that you can continue to load and write data from the hard disk. You can use Disk Check in Windows 7 not only for local hard drives, but also for removable media such as USB memory sticks or memory cards.   Please make sure that you close all open programs and files before you start the disk check.  1. Click the Start Windows icon.  2. Click Open computer 3. Right-click the drive that you want to check.  4. Click Properties >  Click the Tools tab >  Click the Check now button. 5. In the Check Disk <disk name> window, select the automatically fix file system erro...

No sound in Windows Check hardware Many sound problems are caused by hardware that isn't set up properly. This step covers checking your sound card, plugging cables into the correct locations, making sure the hardware has power, and checking the volume. 1. Check your sound card Check to make sure your computer has a sound card, or sound processor, and it's working properly. 1. Open Device Manager by clicking Start , pointing to Control Panel , clicking System , clicking the                Hardware tab, and then, clicking Device Manager. 2. Double-click Sound, video and game controllers to expand that category. If a sound card is listed, you         have one installed. If no sound card is listed, check the information that came with your computer to see         if there's supposed to be a sound card installed. If there should be a sound card installed, you'll need to       ...

Windows 8 If you want to run Windows 8 on your PC, here's what it takes: Processor: 1 gigahertz (GHz) or faster with support for PAE, NX, and SSE2 RAM : 1 gigabyte (GB) (32-bit) or 2 GB (64-bit) Hard disk space : 16 GB (32-bit) or 20 GB (64-bit) Graphics card: Microsoft DirectX 9 graphics device with WDDM driver Additional requirements to use certain features: To use touch, you need a tablet or a monitor that supports multitouch To access the Windows Store and to download and run apps, you need an active Internet connection and a screen resolution of at least 1024 x 768 To snap apps, you need a screen resolution of at least 1366 x 768 Internet access (ISP fees might apply) Secure boot requires firmware that supports UEFI v2.3.1 Errata B and has the Microsoft Windows Certification Authority in the UEFI signature database Some games and programs might require a graphics card compatible with DirectX 10 or higher for optimal performance Microsoft account...

Last updated: August 25, 2026 DirectX is a collection of Windows technologies that allows games and other multimedia applications to communicate with your computer's graphics, audio, and input hardware. If you play PC games, you may have seen errors mentioning DirectX, Direct3D, or missing files such as d3dx9_*.dll . These problems can be confusing because having a newer version of DirectX does not always mean that every legacy DirectX component required by an older game is installed. This guide explains what DirectX does, how to check your DirectX version in Windows 10 and Windows 11, how DirectX is updated, and what to do when a game reports a DirectX problem. Table of Contents What Is DirectX? What Are the Main Parts of DirectX? Do You Need DirectX? Which Version of DirectX Do You Have? How to Check Your Graphics Driver How to Update DirectX in Windows 10 and 11 Why Does a Game Ask for DirectX 9? How to Fi...