Oct 14, 2025 · PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems.

This tool is used to collect info about devices to help troubleshoot problems with DirectX sound and video. A support person might ask for this info, or you might post it in a forum when you ask for help.

Hardware Diagnostic provides color-coded information to identify values or issues with hardware devices or software. The following color key is used in Hardware Diagnostic:

Oct 14, 2025 · Fix-it tools aren’t used in Windows 10. Instead, use a troubleshooter to help solve problems with your PC.

Learn how Microsoft collects and uses different kinds of diagnostic information to help fix problems quickly and improve your Windows experience, and how to control the data you share.

Describes how to determine the version of Microsoft DirectX that is installed on your computer by using the DirectX Diagnostic Tool.

These often help resolve issues without the need to contact support. If a troubleshooter is available for your issue, select Start to run that troubleshooter. Available Windows troubleshooters Get Help has …

Shows detailed information about your Wi-Fi adapter including the adapter’s capabilities, the Wi-Fi profiles on your PC (not including security keys or passwords), and a list of the Wi-Fi networks that …

Jan 12, 2007 · Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows.

If you install and then run an application or game that requires DirectX 9, you might receive an error message such as "The program can't start because d3dx9_35.dll is missing from your computer.