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Slow laptop - Windows 10 - Not virus

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#1 Boshkala


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Posted 31 July 2016 - 05:49 PM

Hi guys, first time poster here so please forgive me if this is the wrong place.

I have a Dell R15, Inspiron 5520.

About 10 days ago my laptop started running very slowly, so I tried restarting it, sometimes it would get past the laptop login stage, sometimes not even tha far.
Anyway, I had that struggle for 10 or so restarts but now it makes it all the way to my homescreen, slowly but surely.

I have done two virus scans with 0 threats found and a disk defragment.

As it doesn't appear to be a virus I am lost as to what could be the problem.

I have searched online but I am not sure if any of the 'fixes' applies and I don't really want to cause more problems.

I don't know why it started running slowly. I booked a plane ticket, shut down my laptop and then 2 days later I turned it on and it is terribly slow..

Any advice would be greatly appreciated. Thanks!

Edited by Boshkala, 31 July 2016 - 05:49 PM.

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#2 FreeBooter


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Posted 31 July 2016 - 08:43 PM

Never run more then one antivirus and firewall programs or your computer will get slower and you will have few more issues just running two antivirus program in real-time protection.


Step 1:


Open Command Prompt as a administrator by pressing  win + X, and then press A letter key.


Run below command from Command Prompt that is open as administrator.


Sfc  /Scannow


You would use DISM to fix Windows component store corruption when a sfc /scannow command is unable to repair corrupted or modified system files because the component store (source) is corrupted.


Dism /Online /Cleanup-Image /RestoreHealth


 SFC should be able to repair the files afterwards. Execute below command to make sure corrupted system files repaired.


Sfc  /Scannow



Step 2:


Boot your computer into Safe Mode if the issue resolves within Safe Mode then one of the startup programs or services causing the issue perform a clean boot to find out which startup program causing the issue.

How To Boot Into Safe Mode On Windows 8 or 10

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#3 Frankierank


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Posted 02 August 2016 - 09:36 AM

It may actually be a hard drive issue.


How old is the laptop? If it is 4-5 years old, it could be time to swap out the HDD for a newer one.

You can also get an SSD drive, which will speed things up.


To check for "disk issue clues", you can take a look in Event Viewer. If you see disk / nfts / drive controller errors, that is (at least part of) the problem.

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