7 Best Computer diagnostic Software tools for Technicians


Computer is an essential thing for Businesses but it is as important to the home users as well. In short we can say that Computers become the necessity of our daily life, Though smartphones are trying to replace computers, but still computers are equally important. And computer errors and problems are also very common. Troubleshooting or repairing a computer is not always easy task for technicians. To diagnose an issue properly first of all we need to gather the system information. After getting the detailed information we can diagnose any issue in less time. This is very helpful specially in hardware and drivers related issues. These tools are useful for Onsite technicians as well as for Remote computer technicians.

Best technicians tools to diagnose a computer

Below are some tools which technicians use to troubleshoot a windows PC. These tools are useful in diagnosing a PC to find out the exact issue.

1. Process Explorer

Process Explorer

Process Explorer is a small utility available for free. It can help to find out the files and directory opened by a program. If you need information that what file or folder is using a process then this tool is very helpful. It is useful to track the DLL version problems or handle leaks.

2. Windows Sysinternals Suite

Windows Sysinternals Suite

Sysinternals suite is collection of diagnostic and troubleshooting utilities provided by Microsoft for Free. So it includes all the utilities which can help to troubleshoot a PC.  Process explorer and other useful tools like Autoruns, PsTools, desktops etc are bundled with this.

3. System Explorer

System Explorer

It is also a free software tool to get the detailed system information. It is an award winning software which can explore the internal system and processes running in the computer.

Main Features:

  • Get details about tasks, processes services, drivers and opened files.
  • File database can help to find out the suspicious files.
  • system resources detailed graphs.
  • WMI browser and more.

 4. SIW (System Information for Windows)

SIW technician’s version is a portable utility which can be run from USB to analyze and gather all the detailed information of the system. Check out some of the great features of it. It comes as home edition and technician edition. It is a paid utility. Below are some of its features

  • It can create a report file in many popular formats like HTML, XML, TXT etc.
  • SIW can gather software information like product keys, serial numbers, AV Codecs, services, processes etc.
  • It can gather all hardware information like CPU, sensors, chipset, memory video card, disk drives and other connected devices.
  • Network configuration and open ports.
  • Show the lost passwords hidden behind asterisks, mac address changer and many other useful tools.


hwinfo diagnostic software

Popular and award winning hwinfo is a free software utility for hardware monitoring and reporting with detailed analysis. It can generate reports and log files in XML, CSV and HTML Formats. It alerts about the system health by real time monitoring. Customized tables and graphs option..

6. Speccy

Speccy Hardware information

Speccy is a hardware information tool by Piriform. It gives detailed information about motherboard, graphics card, CPU, RAM etc. It is a free utility. There are some more advanced features are available in its Pro version.

7. hddscan

HDD Scan disk diagnostic

It is a disk drive diagnostic tool. HDDScan is available free to download. It can can check storage devices including USB drives for bad sectors. You can change Some HDD parameters like AAM and APM. It show the SMART information in detail. Temperature of the disk is also monitored by this utility. It is very helpful to get alert before your disk drive get damaged.

After diagnosing the technical issue in the computer software technicians used the tools repair the PC. Check out Best tools with technician license to Fix and Repair PC.

Please let us know if you have any other software tool in your mind which can be useful to diagnose the computer. Share your experience in the comment section.

  1. Tedd Maxx says

    Where are the 7 best computer diagnostic tools for technicians? I see six (6) informational tools that are not technician grade by any means, and one (1) hard drive “scanner”….

    1. PK says

      Dear Tedd, Hard drive is also a part of computer and If they are not good, Can you please suggest the technician grade tools?

  2. Jo Bogg says

    some of this information is useful and very interesting

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