100% disk usage bug/issue after Windows 10 Update FYI

[UsandThem]

While my oldest son was at school, I decided to log into his machine to make sure there were no issues/malware/general/check for issues after Windows Updates, general maintenance.

His system is a Z97/i5/16GB/SSD build.

After running a virus scan, I went to 'Task Manager' to check out what was running in startup/background, etc.
However, after going there, I noticed his disk (Samsung 850 EVO) was being hit non-stop, and was at 100% usage.

I killed some apps that were in his start-up, but it did not reduce the disk usage. I opened the 'Resource Monitor' and sorted the disk usage by 'Total'. I then noticed this was what was causing 100% disk usage:

wpr_initiated_diagtrackaotlogger_wpr system collector

I had no idea what this was off-hand, so after a trusty Google search, I came across this thread:

https://answers.microsoft.com/en-us...sage-for/a9f6853e-785c-4cc2-937d-e3cf55a5b6db

A user in that thread posted the fix:

"Yes! So you talking about DiagTrack made me investigate that service. It's been renamed to Connected User Experiences and Telemetry. If you go into "Privacy" -> "Feedback & Diagnostics", if you change it to Enhanced or Basic, it should remove the problem. The really cool thing is if you let it set for a while (not sure how long), it will eventually remove the two WPR *.ETL files by itself. I restarted in Enhanced mode, then switched back to Full and now my machine is back to normal! "

One thing of note on this issue is none of my Skylake systems were affected at all by this (3 laptops and 2 desktops). It was only on the Haswell-based system.

Anyways, I hope this helps someone fix this issue if you have it.

 

[JackMDS]

Run Disk CleanUp.

https://forums.anandtech.com/thread...ows-3-99-tb-of-updates-to-be-cleaned.2494357/

 

[Ketchup]

Elixer had a thread about this. Turned it off on my desktop. About to do the same on the others.
https://forums.anandtech.com/thread...omponent-blows-chunks-disk-usage-100.2493744/

 

[UsandThem]

I guessed I missed that post. It's odd that it only happened on one of my computers, but it definitely was affecting the performance of the PC. It just felt much more sluggish than it should have.

With all the various bugs that seem to happen with Windows 10 updates, I always get a little nervous when my computer tells me I need to restart my PC to complete the updates.

 

[UsandThem]

OK, question for you JackMDS:

Tonight when I was playing some Civ 5 on my Skylake desktop, which had no high disk usage issues after the update, it starting getting noticeably sluggish.

So I opened up resource monitor, and my SSD was getting hit around 80-90%. The culprit was svchost.(netsvcs).

I tried to do what I did to fix my son's computer (fix I listed in OP), and it did absolutely nothing. So I went and cleaned up the system files like you suggested, and it worked.

I like to understand how things work, so how does running Windows Update cleanup fix it? Is it a permanent fix, or will the issue arise again after the next update?