“While deleting key” error in Windows 10

Please note: deleting registry keys causes problems in the PC operating system. This error message occurs when you try to delete locked parts of the registry in Windows 10. This article describes how to fix and work around this error.

How to fix it

  • Opening the editor with admin rights, deleting the key.
  • Change permissions.
  • UsageRegDelNull

Open the registry as administrator

  • Open the taskbar.
  • Click the Cortana button.
  • Write the keyword “regedit” in the search box.
  • Right click “regedit”.
  • Select Run as Administrator.

Turn on edit permission

  • First, open the Registry Editor as described in the previous method.
  • Click on the registry key.
  • Select “Permissions” to open the window.
  • Click the “Advanced” button and then “Change” at the top of the window.
  • Type your username in the Object Name text box.
  • Click Check Names in the Select User or Group box.
  • Click the OK button.
  • Select your username under “Permissions for …”.
  • Check the box for “Full permission control”.
  • Then select “Apply”.

Use third-party software

RegDelNull is a command line utility.

  • Save the zip file of the program on Windows
  • Select “Download RegDelNul” l on the official website page.
  • Unzip the zip file in File Explorer.
  • Click EXE in the extracted folder and open a command prompt.
  • Enter the command: “regdelnull <key path> -s”.

Add Registrar Registry Manager to Windows system

Registrar Registry Manager is an alternative third-party editor for Windows. The software includes advanced search, CLSID lookup, and comparison tools. Do not forget to create a backup before any actions and deleting the locked partitions. Also, configure a restore point. We hope that one of the listed methods helped you troubleshoot the issue. If this does not happen, contact a technical support specialist for assistance.

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