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Computer running hot and very slow

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THis is my previous thread about a malware infection just for reference and now I am looking for some more help since I was here last, nothing to do with malware. The problem was taken care of promptly and carefully and I was very satisfied, but my computer is running ridiculously slow right now and I don't know why. The fan certainly sounds like its working overtime and the computer is running real hot. I thought of opening up the bottom of the laptop and cleaning out any dust to see if that would help, but I wanted to check here first. I do not get any malware or virus warnings so I think this is the right place to go. If not, maybe you could steer me in the right direction. Thanks


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Use a can of compressed air and blow air through the fins and intake of the cooling fan.

What is the brand of the notebook ?

There are instances where a BIOS update can help where the fan is not being best utilized. This has been seen in a few Dell models.

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yep ...

if the fan is running full-tilt all the time and the machine is slow ... it may be overheating due to a clogged air path .

back-blowing the exhaust port may fix the problem ... the object is to remove the dust and fuzz that has built up .

in some cases , this actually turns into a felt-like material (especially if the laptop was used in a kitchen - grease vapor) , back-blowing does not remove it ... it just shoves it into the fan .

disassembly is about the most sure-fired way to clean things up .

however ... if you are not competent at tearing down a laptop (95% of the time removing the "bottom" is not as easy as just pulling a few screws on the bottom) ,

you can wind up doing more harm than good .

in this case , finding someone who is hip would be advisable .

while you're in there ... clean and re-goop the cpu and cooler interface .

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  • 4 weeks later...

I did get re-directed to a "Your computer may be infected" site, so I think I might have caught something, unfortunately.

Hi, zbad2000:

We can't work on malware diagnosis and cleaning in this particular sub-section of the forum.

So please read below for assistance with cleaning your system.

IMPORTANT: Please do NOT use any temporary file cleaners unless instructed to do so - they can cause data loss, making it hard to recover your system.


OPTION 1: Free, one-on-one, expert assistance in the Malware Removal Forum.

OPTION 2: For paid users of MBAM PRO, free, one-on-one, expert assistance from the MBAM support helpdesk.

OPTION 3: Fee-based, one-on-one, expert assistance from Premium Support.


  • Please print out, read and carefully follow the instructions in the "I'm Infected - What Do I Do Now?" article.
  • If the infection has so crippled the computer that you cannot complete some or all of the steps, then just do the best you can and start a new topic as described below.

  • Then please start a new post in the Malware Removal Forum.
  • When starting your new post, please note the following:
  • Please do NOT post in a topic started by someone else, even if their problem sounds similar.
  • Please COPY/PASTE the requested logs directly into your post, rather than attaching them.
  • Under options, please be sure to select "track this topic" and "immediate email notification", so you'll know when a helper responds.

  • Please be patient - it may be 48 hours or more before a helper can assist you, especially when the forum is very busy.
  • Please do NOT "bump" your topic or reply back to it for at least 48 hours.
  • Doing so may cause your topic to be overlooked, as it will appear that you are already being helped.


If you are a paid user of MBAM PRO and would like support via the helpdesk, please contact them here.


If you prefer the Malwarebytes Premium Services (comprehensive solutions to all your computer support needs – from installation and set-up to troubleshooting and tune-ups), please go to the Premium Support site here.

Please be patient – someone will assist you as soon as possible.

Thank you very much,


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  • 4 years later...

Laptops have a big problem with heat and airflow, there's just not much room to move air through the system, and often only the CPU and chipset have any active cooling, via a heat pipe to a small heatsink with a blower attached. The RAM and hard drive are left to fend for themselves, by radiating or convection instead of the more pro-active conduction like the heatsink provides.

You may want t consider a laptop cooling mat, and also making sure the laptop sits right-side up. What little airflow is generated for teh RAM is designed around the laptop being in the correct orientation.

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This thread was from 2012.

If I remember correctly, we tried to help you with a laptop issue just about a year ago.  You would start threads but not return to them, you would not perform requested tasks nor answer questions.  Your thread(s) were locked.


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