Windows 8 showing 100% Disk Usage – How to fix it?

We have already covered the topic on how to fix the high CPU usage on Windows 8. In this tutorial we will be discussing about how to decrease 100% disk usage. The task manager shows 10% disk usage even though there are not much programs running on the system. In this tutorial we will be discussing about how to fix high disk usage on Windows 8.

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Explorer hanging or freezing momentarily, similar issues like this can be caused due to high disk usage on Windows 8. Even though there are not many programs installed or running or executing at that point of time but still the disk spikes to 100% usage. Follow the solutions described below to get this issue resolved on Windows 8.

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Fix – Windows 8 showing 100% Disk Usage

Remove old and obsolete, junk files and entries from the system using disk cleaner like CCleaner. This will free some space on the disk along with improving the system performance by optimizing your Windows 8 system.

Press Shift + Esc to open task manager and end all the processes that are using or increasing the disk space especially the larger space occupying or eating up much CPU resources.

Run system file checker. Open command prompt (Admin) and in the elevated command prompt type sfc/scannow and hit enter. This will scan your system for corrupted files and replace them to fix the errors on the system. Reboot your system and open task manger and see if this helps in reducing disk space.
Malware activities can also be a leading culprit behind high disk usage. Run a full system scan using AV or MSE and reboot your system.

Disable AV other than Microsoft security Essential or Defender. Other Av might cause issues with high disk usage on Windows 8.

Often Outdated drivers can create this probable, SO, update all your system drivers to its latest version and see if this helps you get rid of the issue.

Upon following the probable fixes described in this tutorial you can fix the issues 100% disk usage on Windows 8.

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