How to Fix 100% Disk Usage in Windows

There are several things that can cause 100% disk usage in Windows, and it can be a tricky problem to solve. But help is at hand: here are all the common reasons why it happens and how you can fix it.

When a process, or a combination of processes, demand too much of your computer’s hard disk everything can slow to a crawl. It’s probably the unresponsiveness that’s led you to check Task Manager where you’ve discovered that your disk is maxed out.

Finding the problem is just the start though: you still need to fix whatever is causing it to get back to normal.

Method 1. Restart your computer

The first thing to try – as with most Windows problems – is to turn it off and on again. It sounds too simple, but it can often cure issues that you might otherwise spend a long time investigating.

Be aware that you can\’t use the Shut Down option if you have Windows 10, as this saves the system state so it can start up faster. And that means problems don\’t go away.

Instead, use the Restart option which shuts down everything properly and performs a \’clean\’ restart.

After that, if the problem persists, leave your computer alone for an hour or so to do whatever it needs to. It might be that the weekly virus scan or a scheduled backup is happening.

These shouldn\’t cause such a problem, but if you have an older computer with a relatively slow hard disk, it might be more noticeable.

In this case, it can be worth upgrading your old disk to a much faster SSD. We have found this can fixe the problem in aging laptops with old, slow hard drives.

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