How to Troubleshoot 100% Disk Usage.

100% Disk Usage even after refreshing the Dell T5810 PC. Tried performing most troubleshooting guides available in the internet - Disabled Windows Search, Background Intelligent Serivce, Superfetch; Increased Virtual Memory etc. Also checked with Crystal Info Hard Disk which shows the performance as "Good". Updated Dell Softwares, BIOS, Drivers and Windows. The 100% with hard drive is frequent and is disrupting the work of a user. Any suggestions where I might have overlooked in troubleshooting?
user_expertCITS ManagerAsked:
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Jeremy WeisingerSenior Network Consultant / EngineerCommented:
What OS are you running?

Windows 7 and on you can view what is taking up the disk resources with Resource Monitor.
https://blogs.technet.microsoft.com/askperf/2012/02/01/using-resource-monitor-to-troubleshoot-windows-performance-issues-part-1/
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JohnBusiness Consultant (Owner)Commented:
If you have enough space to install and run Tree Size (Jam Software), try that. Excellent tool for graphically displaying disk usage. You can start with the trial.
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dbruntonQuid, Me Anxius Sum?  Illegitimi non carborundum.Commented:
Virus scan?

Try Malwarebytes  https://www.malwarebytes.com/  Get the Windows version and run it.  If it doesn't find anything uninstall it.

Also find the manufacturer's util for the particular hard disk you have in your system and run that over it.  Both Seagate and Western Digital have utils and if you can't find them post here.
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David Johnson, CD, MVPOwnerCommented:
from task manager / performance open resource monitor, select the disk tab 2018-10-02_18-30-54.png
Sort by total bytes as shown in this video https://www.screencast.com/t/mugyTnmTW

Search Indexer runs at low priority so ignore it
MSASCui.exe and MSMpEng.Exe is microsoft Defender also ignore it (also runs at a low disk priority
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nobusCommented:
it can simply be a bad drive - what model are you using?
run a diagnostic on it
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Gerald ConnollyCommented:
Looks like you did the snip at the wrong time, only showing 34% busy!

100% disk usage can mean either that the disk is full or you are using all of the available IOPS depending on context!

  • For 100% disk full - Treesize or Windirstat are good at visualising what is consuming space(i prefer windirstat)
  • For 100% IOPS - Need to see what is running, is this happening only for the first 10 minutes after startup. Usual fix is to migrate to a SSD  
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David Johnson, CD, MVPOwnerCommented:
@Gerald the snip is from me (another expert and not the asker)
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Gerald ConnollyCommented:
Oops that’s what I get doing this on my phone, and in a hurry
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user_expertCITS ManagerAuthor Commented:
Thank you everyone for your suggestions. Tried most things mentioned here, ,got the same issues with hard disk. Going for SSD as Gerald mentioned.
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nobusCommented:
you were so friendly not to answer my post....how can i give further help then ?
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