SOLVED! Service Host: Cryptographic Services 100 Disk

SOLVED! Service Host: Cryptographic Services 100 Disk

If you come across Service Host: Cryptographic Services 100 Disk usage on Task Manager, it’s highly likely that there is corruption in system files and you should perform SFC and DISM scan. In addition, it’s wise to end task, update Windows, and delete the Catroot folder in Safe Mode. Continue reading to put an end to the high Disk usage of Service Host: Cryptographic Services.

Breakdown Of The High Disk Usage


Among files on Windows, systems files have the most impact on performance and if they become corrupted, things could go haywire. Hence, regarding Service Host: Cryptographic Services 100 Disk usage, you should take corruption into account. 


Microsoft rolls out updates for Windows updates every now and then to fix bugs, refine features and so on. If you neglect updates, your version of Windows would have a hard time working as expected. You notice spikes in the resource usage of services on your Windows PC? Then it’s strongly recommended that you give Windows some thought. 

A Few Fixes

Perform SFC And DISM Scan

  • Step 1: Right-click Start menu. 
  • Step 2: Pick Command Prompt (Admin) to run the Command Prompt with administrator privileges.
  • Step 3: In Command Prompt (Admin), run the command sfc /scannow to perform SFC scan. 
  • Step 4: As soon as the SFC scan completes, run each of the following commands to initiate DISM scan.
    • DISM /Online /Cleanup-Image /ScanHealth
    • DISM /Online /Cleanup-Image /CheckHealth
    • DISM /Online /Cleanup-Image /RestoreHealth
  • Step 5: Close Command Prompt, restart your computer and determine whether the issue persists.  

End Task

  • Step 1: Right-click an empty spot on the taskbar and pick Task Manager. 
  • Step 2: Locate Service Host: Cryptographic Services, select it and choose End task.
  • Step 3: Restart your computer.

Update Windows 

  • Step 1: Press Windows + I to open Settings choose Update & Security and select Check for updates.
  • Step 2: If an update is available, allow Windows to download and install it.
  • Step 3: When the update wraps up, restart your computer.
  • Step 4: As the screen comes back on, open Task Manager and see how things turn out. 

Delete Catroot In Safe Mode

Boot into safe mode

  • Step 1: Right-click the Start menu then hover your mouse over Shutdown or sign out.
  • Step 2: Press and hold Shift then hit Restart to open Advanced Recovery Environment.
  • Step 3: Pick Troubleshoot then click Advanced Options.
  • Step 4: Select Startup settings then choose Restart.
  • Step 5: Once your computer restarts, press the appropriate key to enable Safe mode.

Delete Catroot

  • Step 1: Right-click Start menu. 
  • Step 2: Pick Command Prompt (Admin) to run the Command Prompt with administrator privileges.
  • Step 3: Stop Windows Update, Cryptographic, BITS, and MSI Installer by running each of the commands down below in Command Prompt (Admin). 
    • net stop wuauserv
    • net stop cryptSvc
    • net stop bits
    • net stop msiserver
  • Step 4: After you finish, press Windows + E to open Windows Explorer then navigate to the directory: C:\Windows\System32.
  • Step 5: Delete Catroot.
  • Step 6: Restart all stopped components by running these commands in Command Prompt (Admin).
    • net start wuauserv
    • net start cryptSvc
    • net start bits
    • net start msiserver
  • Step 7: Restart your computer.

Other Common Questions

What is the purpose of Cryptographic Services and how can I enable/disable it?

As the name suggests, Cryptographic Services encrypts and decrypts data on storage devices upon access. This service is installed by default and when started, it logs on using the Network Service account. You can enable/disable Cryptographic Services via Services. 

What does Safe mode mean?

Safe mode in Windows is a mode whereby the operating system only uses a minimal set of drivers and services while starting up. That helps in isolating problems that complicate computer operations such as software conflicts. 

What is the Catroot folder?

For your information, the Catroot folder is a system folder on Windows that plays a key role in updating Windows. This folder contains several files and folders including signatures of the Windows Update package.

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