Pinterest MobileAppPage Stumbleupon Whatsapp
Ads by Google

A irresponsive system is a relatively common error you will encounter when using a PC. In many cases, you won’t even get a message that your system is not responding because the computer has hung and it can’t send you even that message. Very often, when your system is not responding, this means that neither the mouse, nor the keyboard are working and the only solution is to hit the Restart button.

When your system is not responding, usually CPU usage is at 100%, no matter if you do anything or not. On the other hand, it is not mandatory for this to happen, so if your CPU usage is not shown to be 100%, it is still possible that your system is not responding.

7 Reasons Why a System Is Not Responding

There are tons of reasons why a system can stop responding – it could be due to a hardware or a software conflict. Such errors don’t happen only on PCs but on all kinds of hardware (if this is of any comfort to you) and the symptoms could vary – from a totally blocked machine – to a PC which is responding very, very slowly. Here are seven of the most common reasons why a system is not responding and what you can do to prevent them.

1. Hardware incompatibilities

This is one of the most frequent reasons why a system stops responding. The culprit could be anything – from a mouse/keyboard, to a CD drive, to a USB device. In some cases, you might even experience a Blue Screen of Death (BSOD), which is one more symptom of hardware incompatibilities. Remove the suspect and replace it with a functioning device and see if this helps.

A Blue Screen of Death is one of the most common symptoms when a system becomes irresponsive

Ads by Google

2. Driver issues

Even if the hardware itself is not a problem, the drivers that manage it could be. If you have recently installed a new driver, this is the first suspect to check. Uninstall the driver and see if this helps. Don’t worry, there are easy ways to remove old and faulty drivers from Windows How To Easily Remove Old Drivers from Windows How To Easily Remove Old Drivers from Windows Read More .

3.Messed up Windows Registry

Windows and its Registry are very complex creatures and even minor messes with them could not only make a system not responding error but could even make a computer totally useless. That is why it is a good idea to clean your Windows and the Registry from time to time, even if there are no visible problems. One great way to do it is with the help of nCleaner Ncleaner - The App That Tells CCleaner To Take A Hike Ncleaner - The App That Tells CCleaner To Take A Hike Read More .

4. Malware of all kinds

Spyware, adware, trojans and the other pests you get for free from the Internet, are also a common reasons why a system is not responding. Just run a good anti-malware program and that’s it. Here are some great free online malware and virus scanners 10 Free Online Malware and Virus Scanners 10 Free Online Malware and Virus Scanners Read More you might want to check.

5. Antivirus programs

As strange as it might sound, anti-virus programs can hang a computer. If you have more than one anti-virus program, conflicts between them are pretty common but even if you have only one anti-virus program, still there are many ways in which it can mess with the Registry, or with the applications on your computer, thus causing it to crash. Try to see which of the antivirus program is the problem and uninstall it. For antivirus recommendations, take a look at our poll for the best free Antivirus applications Top Antivirus Software. What's your Favorite? [Poll] Top Antivirus Software. What's your Favorite? [Poll] Read More .

6. Bugs in applications

Poorly-written system tools and applications can cause a lot of trouble but it is not only system applications that can crash a computer. Browsers, such as Firefox or Internet Explorer can frequently hang when a poorly-written script is executed. If you are lucky to know which application in particular makes your system irresponsive, uninstall it (or in the case of a browser – disable the faulty plugin) and pray that this fixes the situation.

7. User intervention

Tweaks Some Handy non-Registry Windows Tweaks Some Handy non-Registry Windows Tweaks Read More are great and very often they are safe to do (if you take the necessary precautions, of course) but as a matter of fact, tweaks that went bad are also a common reason for why a system is not responding. That’s why you need to be very cautious when you tweak your computer. And above all – always make a backup How Do you Backup Important Files? [Poll] How Do you Backup Important Files? [Poll] Read More , a system image How to Prepare Yourself for System Restore From Scratch How to Prepare Yourself for System Restore From Scratch Read More and/or a restore point before you start tweaking, so that if the tweak goes unplanned, you still have a lifeline.

The above reasons and their suggested workarounds are just some of the most common causes as to why a system is not responding. When your system is not responding, try these solutions and if they solve your problem – be very, very happy about it!

Feeling geeky? Check out these articles to make your computer run faster and troubleshoot problems:

  1. Giando
    February 19, 2016 at 8:41 am

    Gud tips, some anti-malware itself are malware...

  2. very bad
    February 11, 2016 at 9:12 pm

    Very bad guide you should die in hell

  3. Vukile
    January 12, 2015 at 2:05 pm

    I tried installing avast anti virus 2014 on my Windows XP pc, the pc then automatically restarted itself, now its frozen, I've restarted 4 times already but no application or file is responding or

  4. Lawrenzi
    December 15, 2014 at 5:07 am

    Thank you sooo much. It works..

  5. Tana
    June 10, 2009 at 8:09 am

    Regarding Registry Cleaners
    They could help - for a moderately messed up Windows installation. For a seriously messed up Windows installation my personal favorite is reinstallation (or more precisely - restoring Windows from a clean image).

  6. Tana
    June 10, 2009 at 8:07 am

    To Shreela - it is quite possible that the combination of 2 apps is "toxic" for your computer. It is bad, when you need both applications.

  7. andy
    June 9, 2009 at 4:00 pm

    Registry cleaners are a waste of time and more dangerous according to numerous experts at

    Don't waste your time with those. Just use something that can track the installation of a new program and then TOTALLY uninstall it if you don't use it.

    • Nicbot
      June 9, 2009 at 7:25 pm

      Agreed. I've been working with Windows for a long long time and have never fixed a 'frozen' or 'unresponsive' issue with any registry cleaner. On the flip side, registry cleaners have broken things a few times.

      A more likely fix for core windows component corruption would be System File Checker 'sfc /scannow' In fact, how did that not make this list?? It's built in even!

  8. Shreela
    June 9, 2009 at 2:12 pm

    Adobe Air and/or Silverlight.

    All I know is our XP3 kept running slower and slower, despite negative scans (AVG, Spyware Terminator, HiJackThis, SSD, AdAware). So next was to lose stuff I "really" didn't "need" that was on all the time. After Adobe Air and Silverlight was uninstalled, the XP3 was back to normal.

    Now I wish I would have uninstalled each one separately to know which it was, or if it could have been the combo.

    I did notice other XP users complaining about Adobe Air slowing their pc down a lot, but didn't look up Silverlight forums/blogs.

  9. Tana
    June 9, 2009 at 2:54 am

    I agree with your points - 8 and 9, I mean. :) As for "why", it is similar to "that" in those cases "that" can be omitted - could be both. :)

  10. Jersey Bob
    June 8, 2009 at 3:37 pm

    I'll add an 8th reason: Windows is a #%$& piece of &@#$% that wasn't tested properly. Oh, and reason #9: the people who write the software don't actually have to use it.

    BTW, a grammatical nitpick regarding this article's title: "Reason why" is redundant. It's sufficient just to say "Reason".

    • Nicbot
      June 9, 2009 at 5:06 pm

      Wow. You'd rather have the company who develops your OS dictate what hardware you can or cannot put it on? You'd rather have the company who develops your OS be responsible for delivering you every piece of software you use too? ...ehem...Apple (admittedly getting better though)

      The market and the variables are now too vast for anyone to expect perfection. I my self have been there so I understand your frustration, but I do feel that your beef is a bit dated and that MS is doing a pretty good job these days. IE- Win7, Bing, Live Mesh, Technet, Natal...

      Don't get so caught up in the anti-hype dude. It won't get you laid.

Leave a Reply

Your email address will not be published. Required fields are marked *