Issue: When attempting to use Oracle VirtualBox, you may encounter the error “vboxclient failed to get display change request.”

Solution: Follow the steps below to resolve this error:

1. Open System Preferences.
2. Go to Security & Privacy.
3. Under the General tab, look for Allow apps downloaded from: and make sure it says Anywhere.
4. If it does not say Anywhere, click the padlock icon in the bottom left and enter your credentials to make changes. Then select Anywhere.
5. Once done, restart your computer.

After restarting, the error should be resolved.

Frequently Asked Questions:

Q. Why is this error happening?
A. This error generally occurs when your System Preferences security settings do not allow the installation or running of applications downloaded from the internet or any other source.

Q. Does the issue persist after restarting the computer?
A. This issue should be resolved after restarting the computer, as long as the System Preferences security settings have been updated to allow the installation and running of applications.

Q. Can I still use Oracle VirtualBox if this error persists?
A. Yes, you can still use Oracle VirtualBox if this error persists. However, you will not be able to take full advantage of its features until you have resolved the error.

Sources:

• https://ccm.net/faq/89898-virtualbox-display-change-request-error-vboxclient
• https://support.apple.com/en-us/HT202491