Dear Learner,

Hope you are doing good.

Please try the below steps to resolve the issue:

(i) Open the Oracle Virtual Box.

(ii) Click on Settings.

(iii) Click on System:

(iv) Now go to processor and make sure PAE/NX is enabled as shown below:

(v) Now click on OK and try to start the Virtual Machine.

Please try this and let us know if the issue persist.

I will wait for your response.