Free pc diagnostic software software for windows

Memory Diagnostic 1 is a utility used to test the Random Access Memory (RAM) on your computer. It is free. The diagnostic includes a comprehensive set of memory tests. If you are experiencing problems while running Windows, you can use the diagnostic to determine whether the problems are caused by failing hardware, such as RAM or the memory system of your motherboard.

Windows Memory Diagnostic is designed to be easy and fast. On most configurations, you can download the diagnostic, read the documentation, run the test and complete the first test pass in less than 30 minutes.

The Debug Diagnostic Tool (DebugDiag) is designed to assist in troubleshooting issues such as slow performance, hangs, memory fragmentation or leaks, and crashes in any Win32 user-mode process.
The Debug Diagnostic Tool includes additional debugging scripts focused on Internet Information Services (IIS) applications, web data access components, COM+ and related Microsoft technologies.
DebugDiag 1.0 was released as part of the IIS Diagnostic toolkit and as a standalone tool. DebugDiag 1.1 is currently available as a standalone tool.
DebugDiag provides an extensible object model in the form of COM objects and provides a script host with a built-in reporting framework.
It is composed of the following 3 components; a debugging service, a debugger host, and the user interface.
The Debugging Service
The debugger service (DbgSvc.exe) performs the following tasks:
- Attach/Detach the host to processes
- Collect performance monitor data
- Implement HTTP ping to detect hangs
- Inject leak monitor in running processes
- Collect debugging session state information
- Shows the state of each rule defined
The Debugger Host
The Debugger Host (DbgHost.exe) hosts the Windows Symbolic Debugger Engine (dbgeng.dll) to attach to processes and generate memory dumps. It also hosts the main analyzer module to analyze memory dumps. Dbghost.exe has no dependency on the service ?DbgSvc.exe? and can be used separately.
The User Interface
The user interfaces (DebugDiag.exe and DebugDiagAnalysisOnly.exe) present an interface to analyze memory dumps, automate the creation of control scripts and show the status of running processes, including services.
It is composed of 3 views:
- Rules: Creates control script for the debugger host through a wizard. The script is located under scripts
- Advanced Analysis: Runs a selected ?Analysis Script? against one or more memory dumps.
- Processes: Shows status of running processes/services

This program is used to diagnose the disk when the Samsung hard disk is suspected to have failures. It is strongly recommended to back up your data before using this program!

Cable Modem Diagnostic is simple application for remote measuring of basis parameters of cable modems that supports DOCSIS standard.
Cable Modem Diagnostic provides exact information about:
- Output level, Upstream power level
- Input level, Downstream power level
- Ping of modem
- Upstream frequency
- Downstream frequency
- Model of modem
- Downstream signal to noise ratio
- Name of config file
- Detect standby mode of modem

The Network Diagnostics for Windows XP tool will analyze information about your network connectivity and help you troubleshoot network-related problems with your PC.
Typically you will do this along with a support professional, either on the phone or over the internet. After you install this item, you may have to restart your computer.