When deleting a key, remember that every sub-item that it contains will also be deleted. Use the steps in this section to delete the registry item you created previously. The Registry Editor searches through the registry, stops, and highlights the value BBBBB. Use the steps in this section to find the registry item you modified in the previous section.

Use the steps in this section to modify the registry item you created in the previous section. Use the following steps to add a value to the key you created. The following steps provide an example of how to add, modify, find, and delete registry items.

To back up a particular key or subkey, click the key or subkey that you want to back up. Depending on your version of Windows, the graphics in this document might vary slightly from what you see on your computer. The information and content of each window is the same, but the border might look slightly different. For business PCs, if changes revert after rebooting or items are unavailable or greyed out, measures could have been put in place to manage the PCs security policies.

Type Command Prompt in the search bar, right-click it and choose "Run as administrator". Expand "Display Adapters" and right-click on "graphics driver" and select "Update Driver". Finally, choose the User Name (Your Desktop Name \ Administrator) option and check to Allow boxes for "Full Control" and "Read", click Apply.

  • Alternatively, you could reinstall Windows, which would fix any bad registry settings by overwriting entries in the registry dnsapi.dll.
  • In some situations, it can cause Windows to stop working.
  • These references can be left behind when a program is not uninstalled properly, the uninstaller is poorly written, […]