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Win7 extreme slowness, CPU and RAM unused


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#1 SuperMouf

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Posted 18 October 2013 - 01:39 AM

Hello everybody, this is my first time on Bleeping Computer, so I hope you're as good as it seems :)

 

I bought a few months ago a Samsung Laptop (NP530u4e-s02fr), and last month I removed Win8 because I was bored of it (like ... really bored), and reinstalled Seven. Everything was fine then, apart from a little lack of memory two weeks ago that I solved by adding 4GB (I had an empty slot), for a total of 8 GB.

 
But yesterday evening, while I was peacefully surfing on the Internet (gmail, facebook ..), my computer began to be really slow. It became impossible to load a webpage. At first, I naturally rebooted the PC. But no change, it was still really slow : it took about 10 minutes to launch the TaskManager ; and once I could access to it, I was surprised that everything seemed normal : (RAM: 1,5GB ;  CPU : less than 30%). Temperature is normal too. So I reboot the computer, in SafeMode this time, and this everything is working fine. No slowness. So I use that chance to check if I have no virus infection, and according to MBAM everything is perfectly fine. That's at least a thing.
 
After a quick look on my old friend Google, I find similar cases, and in most of them it seem to be a dying HDD problem. So I install HDTune, schedule a complete CHKDSK scan, reboot in normal mode. At the beginning, no slowness so I launch a HDTune scan, and here are the results :
 
This is normal mode :
dl33.png
 
As a comparison, this is SafeMode :
jhqz.png
 
As I don't know what to do with those results, I say to myself "well, looks fine ..", and guess what, 10 seconds after it becomes really slow again. So I try to launch a second HDTune scan, but ... no way. The HDD Speed was oscillating between 0.01 MB and 0.3 MB per sec (yeah ...), but above all it took about 2 minutes to reach the ten first seconds of the scan (Don't know if you see what I mean ..).
 
So now I rebooted in SafeMode, everything is fine here, and I hope you can help me ...
Being abroad till end of December, it's gonna be hard to get in touch with Samsung's CustomerService ...
 
HELP ME PLEAAAASE ! :D
 
Thanks for reading me ... what should I do ?
Thank you for your answers,
 
Ray

Edited by SuperMouf, 18 October 2013 - 09:53 AM.


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#2 Asimov1973

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Posted 18 October 2013 - 02:34 AM

Try to check your HDD with HDD Sentinel. I'm almost sure that your HDD have bad sectors and/or a bad mechanical problem.



#3 SuperMouf

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Posted 18 October 2013 - 03:00 AM

Hi,

 

Thanks for your answer !

I checked HDD Sentinel, and there are some results, but I'm not sure what they mean.

 

Here what it says :

 

Performance : 100%

Condition : 82%

 

8 non-trustable sectors found 

 

What's next ?



#4 SuperMouf

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Posted 18 October 2013 - 09:56 AM

I'm starting to be really scared ...

The HDD seem to be worse and worse every hour ... sometimes it wasn't slow for a few hours, but now it's really unusual when it goes well ...

The "condition" field in HDD Sentinel is now at 73%, and it's estimate remaining time has gone below 1000 days ... :s

 

What should I do ? Apart from a backup while it's still possible ... ?

 

Ray



#5 hamluis

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Posted 18 October 2013 - 12:56 PM

Backup valued data files, if possible..

 

After that is done, then worry about alternatives.

 

Louis



#6 SuperMouf

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Posted 18 October 2013 - 12:59 PM

Thanks for the advice, but yeah, it's actually the first thing I did this morning !



#7 hamluis

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Posted 18 October 2013 - 04:25 PM

Then...run a diagnostic on the hard drive.

 

Please...read all instrucitons before using...then burn the bootable CD version and run the long diagnostic test.

 

SeaTools for DOS Tutorial - http://knowledge.seagate.com/articles/en_US/FAQ/201271en

 

The long test took me about 75 minutes on a 250GB drive.

 

Louis


Edited by hamluis, 18 October 2013 - 04:27 PM.


#8 SuperMouf

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Posted 19 October 2013 - 01:43 AM

Ok, I just finished the test.

Since I have no CD Reader, I used a USB Boot device and luckily it worked.

 

There was 8 failing sectors, and the test seem to pass after their repair.

I took some pictures:

 

After the test:

qupy.jpg

 

After the repair:

ocij.jpg

 

So what do you think ?

 

Anyway, I really appreciate your help, thank you a lot ! :)

 

Ray



#9 hamluis

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Posted 19 October 2013 - 03:27 PM

Clean install time.

 

If the hard drive is OK...then the partition may not have been OK.

 

The only tool that I know that warns of bad/damaged partitions...indirectly...would be chkdsk /r.  When the hard drive checks out as functionally sound...and I've experienced problems ...I just guess in retrospect.

 

Louis



#10 SuperMouf

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Posted 19 October 2013 - 03:32 PM

Sorry, but I don't get your point ?

After the CHKDSK /r, do I have to re-install Windows, making a new partitioning of the disk ?

 

Thanks

 

Ray



#11 hamluis

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Posted 19 October 2013 - 03:49 PM

A clean install...new partition, new Windows install.

 

The chkdsk /r information is not related to the clean install....it's meant to be useful in your future.

 

Louis



#12 SuperMouf

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Posted 20 October 2013 - 12:34 AM

Okay, thank you for the advice !

For the moment, it seem to be stable.

If the slowness appears again, I will re-install.

 

Thank you very much for your support ... really really appreciate it.

 

Ray



#13 hamluis

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Posted 20 October 2013 - 09:49 AM

:thumbup2: , happy computing.

 

Louis






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