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Fix 100% Disk Usage after Windows 10 April 2018 update version 1803

Microsoft drops regular windows updates with New features, security improvements and bug fixes to fix the patch holes created by third-party software. And on windows 10 set to install the updates automatically when the machine connected to Microsoft server. But sometimes updates create different issues for users, a number of users report after recent update install or upgrade to Windows 10 April 2018 update computer stuck, And freezes. When checking on Task manager for resource usage they notice 100% disk usage. If you are also having same issue 100% Disk Usage on Windows 10, Here some tips to Fix 100% Disk Usage on Windows 10 April 2018 update version 1803.

Why windows 100% disk usage?

This is a problem because when your computer’s hard drive is constantly working at or near 100%, it won’t have any spare capacity to perform other tasks, even routine operating system tasks. This slows everything down and can make your computer totally unresponsive.

There are various reasons behind it, generally, this error is caused by some Windows services like Superfetch, Prefetch, BITS and Windows Search. Also, pending system updates, Virus/malware infection, problematic page file configuration, corrupted system files, outdated drivers, Hardware issue like HDD errors, bad sectors can cause windows 10 100% disk usage problem.

How To fix 100% disk usage on windows 10

After Understand the issue and reason behind 100% disk usage on Windows 10, Here apply bellow solutions to fix the issue.

Note: For the purpose of this article, we’ll be specifically discussing Windows 10, although the solutions can apply to previous versions of Windows as well.

Check for virus/malware infection

Virus malware infection can cause different problems on Windows computer, include High System resource usage, 100% disk usages, which cause system freezes, not responding etc. Start with basic Troubleshooting Check windows for virus infection and make sure your PC is virus free. For that download and install latest antivirus / anti-malware application with latest updates and perform full system scan. Also download third-party system optimizer CCleaner to clear junk, cache, system error files and fix corrupted broken registry entries. After that restart windows and check Disk usage come to normal.

Disable Windows Services

As discussed some windows services Running background cause unnecessary system resource usage. Disabling these services, Specially Superfetch, Disable Background Intelligent Transfer Service (BITS), windows search and windows update can help to fix this 100% disk usage problem.

About These services :

Superfetch Service: Superfetch is one of those Windows services that will always have the potential of delivering a better sweet user experience. The premise behind Superfetch is that Windows will learn from your usage habits and “guess” which applications/services you’re most likely to use next. Based on this prediction, the OS will cache those apps and programs to the RAM, so they’ll load faster. This is a fantastic concept, but unless you’re a robot that’s programmed to follow a particular routine, Superfetch’s predictions are bound to miss from time to time. And because the service is busy pulling all those predicted app files and data from your hard disk, you get the 100% Disk Usage error.

BITS: BITS is yet another Windows 10 service that’s supposed to be helpful but can turn out to be quite the opposite. The idea behind BITS is that when your computer is sitting idle, the bandwidth can be used for Windows Update, Windows Defender and the like. While it usually works just fine on newer machines, older hardware can actually suffer while BITS tries to decipher when the computer is actually idle.

To Disable These Services

To Disable these services press Win + R, type Services.msc and hit the enter key. Here on windows services scroll down and look for Superfetch, double-click on it. A new popup window will open Here change the startup Type Disable and stop the service next to service status as sown bellow image. Click apply and ok to make save changes.

Disable Windows 10 Superfetch service
Disable Windows 10 Superfetch service

Again Do the same with Disable Background Intelligent Transfer Service (BITS), Windows Search and windows update service.

Disable Windows 10 Prefetch

While Superfetch caches data to RAM based on intelligent guessing, Prefetch works when you launch those applications. Essentially, Prefetch records information on files that are used by any given application and then pulls those files to RAM to improve app loading times. However, Prefetch isn’t your standard Windows service, we need Tweak windows registry to Disable prefetch Service.

Press Win + R, Type regedit and hit enter key. Here on the registry editor first backup registry database then navigate to following :


In the right side panel, you’ll see an entry for EnablePrefetcher. Double-click it and change the DWORD value from 3 (default) to 0 to completely disable the service. You may also put in 1 as the DWORD value, which will keep Prefetcher partially enabled but disabled for boot files. click ok and close the windows registry editor.

registry Tweak to Disable prefetch service
registry Tweak to Disable prefetch service

After Disable All These Services simply Restart windows to take effect the changes, Next time when you log in check this time Hard disk usage come to normal state. Still, Need help fallow next instruction.

Configure your Page File

Windows Automatically Use some Hard disk space ( page file ) as virtual memory to optimize the system performance. You can know more about pagefile ( virtual memory ) from here. But sometimes this paging file can cause problem on the disk drive which causes 100% disk usage problem. Check with Disable the virtual memory option and see high disk usage problem solved. To disable page file ( virtual memory ) follow steps below.

First, click on Start menu search type performance and select adjust the appearance and performance as shown below image.

adjust the appearance and performance on windows
adjust the appearance and performance on window

Here on Performance options move to advanced Tab, Then click on Change under Virtual memory. A new popup Window open named virtual memory. Here uncheck the option Automatically manage paging file size for all drives As shown below. Then select no paging file radio button on click on Set. click OK, Apply OK to make save changes, This will ask restart windows to take effect, Restart windows and check now disk usage come to normal.

uncheck Virtual memory Option
uncheck Virtual memory Option

Repair Corrupted system files

Also Corrupted, Missing system files can cause different errors and problems on windows 10. System freeze, Application not run with a different error code, Blue screen of death and high System Resource usage are the common ones, Normally cause due to corrupted system files. Windows SFC utility ( system file checker ) is a good tool that helps to scan and restore missing system files. you can read more about SFC utility with Details from here.

To Run SFC utility on Windows computer open command prompt as administrator, Type Command sfc / scannow and hit enter key to execute the command.

Run sfc scannow
Run sfc scannow

This will scan windows for corrupted and missing system files If found then this will restore them from a cache folder located %WinDir%\System32\dllcache. You only have to wait until 100% complete the scanning process then after restart windows. Now Check High Disk usage problem solved for you, Still need help fallow next solution.

Run Check Disk

Some Times this High Disk Usage also cause due to HDD Errors or Bad Sectors. Running Windows CHKDSK Is a good option to fix 100% disk usage problem which checks and fix hard disk errors.

Normally CHKDSK command Check disk Errors only, By adding some extra parameter you can force CHKDSK to repair them for you. Let’s see how to check and fix disk Errors.

First open an elevated command prompt (type cmd in Windows 10 search bar, right-click on command prompt and select “Run As Administrator”), Then run the following command:



Run Check disk on Windows 10
Run Check disk on Windows 10

Note: Replace C: with your windows installed Drive letter, Mostly its C: but if you installed windows on a different drive then assign the drive letter.

Command Explained :

Here Command CHKDSK is for Check disk Drive.

C: is the Drive Letter, Which check for errors.

/r  Locates bad sectors and recovers readable information

/f Fixes errors on the disk

After type the command when you press enter to execute the command You’ll see a message within command prompt that will ask you to confirm whether you’d like to run CheckDisk on next system reboot. Acknowledge with a Y, and restart your computer. This will scan disk drive for Errors, Bad sectors if found this will fix them itself for you. CheckDisk might take some time to finish, but it can be very useful not just for 100% Disk Usage error but some other issues as well.

Some Other Solutions :

Disable Windows Tips: Windows 10 offers tips about the operating system from time to time, and disabling those seems to have helped mitigate the 100% Disk Usage error for a variety of people. Just go to Settings, then to System and then Notification & Actions. Disable “Show me tips about Windows” in this list.

Disable Background Apps: Also on Windows 10 apps run background which use unnecessary system resources. A number of users report After Disable background Running apps, They notice less system resource usage, Which helps them to fix 100% disk, CPU usage problem. You can disable Background apps from Settings -> privacy -> scroll down and select Background Apps. Here turn off the unnecessary apps which start on windows 10 startup.

stop background apps
stop background apps

These are some Best possible Solutions to fix 100% Disk Usage on Windows 10 computer. I hope after apply these solutions your problem High Disk Usage/ 100% disk Usage after windows 10 Fall creators update will get solved, And windows run smoothly without any issue. Still, have any query, a suggestion about this post feel free to discuss on comments. Also Read from out blog Fix Drive Not Accessible The Disk Structure is Corrupted and Unreadable

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