Fix Windows 10 100% Disk Usage in Task Manager

Fix Windows 10 100% Disk Usage in Task Manager (2024)

We’ve all been there. You just want to check your email or fire up a game, and your Windows 10 computer decides to take a leisurely stroll while you wait… and wait… If Task Manager (remember, Ctrl+Shift+Esc is your shortcut) is showing 100% disk usage, we’ve found the likely culprit!

Don’t panic, this is surprisingly common. Let’s figure out why your computer is suddenly chugging along and get things running smoothly again.

Fix Windows 10 100% Disk Usage in Task Manager

Why Does My Disk Drive Go Haywire?

Your hard disk drive (HDD) or solid-state drive (SSD) is like your computer’s filing cabinet. When you ask your computer to do something, whether checking email or editing a video, it needs to fetch the right files from your drive.

Now, think it like this your super-organized filing cabinet has suddenly turned into a chaotic mess. That’s the kind of confusion 100% disk usage can cause. Several things can trigger this issue:

  • Software Overload: Too many programs running at once, or hidden background processes, demand your disk drive’s attention, overwhelming it with requests.
  • Sneaky Updates: Windows Updates, while often necessary, can sometimes hog resources when running in the background.
  • Conflicting Programs: Two or more programs might fight for control of your disk drive, leading to delays and slowdowns.
  • Viruses and Malware: These nasty invaders can commandeer your hard drive for their own purposes, making everything else crawl.
  • Aging or Faulty Hardware: An older hard drive, or one beginning to experience issues, may have trouble keeping up with the demands placed on it.

How To Fix Windows 10 100% Disk Usage in Task Manager

Let’s start our troubleshooting quest! Keep in mind, sometimes even experienced tech wizards might need several attempts to conquer this problem.


Technology can be funny sometimes. A simple restart can miraculously clear up temporary glitches, stop runaway background processes, and give your disk drive a breather. Think of it as the tech equivalent of taking a deep breath – it often works wonders!

Windows Update Check-Up

Outdated versions of Windows can contain bugs and inefficiencies. Let’s make sure you’re running the latest and greatest:

  1. Head to Settings (the little gear icon in your Start Menu)
  2. Navigate to “Update & Security”
  3. Hit “Check for Updates”. Let Windows download and install any available updates.
  4. Reboot your computer afterward, just to be safe.

Task Manager Investigation

Task Manager is like your computer’s behind-the-scenes control room. Here’s how to use it:

  1. Press Ctrl+Shift+Esc (the secret Task Manager shortcut)
  2. Click the “Disk” column header to sort by who’s using your disk the most.
  3. Any program with a high percentage is a likely suspect. Can you close any unnecessary programs to lighten the load?

Antivirus Issue

Malware loves to hide and cause mischief. Your antivirus is your knight in shining armor:

  1. Run a full, deep scan with your trusted antivirus software.
  2. If nothing comes up, consider getting a second opinion with a different antivirus program like Malwarebytes.

Power Management Tweaks

Windows sometimes tries to conserve power by throttling your hard drive. Let’s prioritize performance:

  1. Go to Settings -> System -> Power & sleep
  2. Click “Additional power settings”
  3. Hit “Change plan settings” next to your chosen plan
  4. Click “Change advanced power settings”
  5. Expand “Hard disk” and make sure options are set for maximum performance.
Fix Windows 10 100% Disk Usage in Task Manager (2024)

Final Words

Troubleshooting computer issues can sometimes feel like a puzzle where some pieces just don’t want to fit. If the simpler solutions didn’t do the trick, don’t give up! The more advanced troubleshooting resources might hold the key, but sometimes those involve a bit more technical know-how.

Masab Farooque is a Tech Geek, Writer, and Founder at The Panther Tech. He is also a lead game developer at 10StaticStudios. When he is not writing, he is mostly playing video games