Problem: Oracle VirtualBox does not allow the setting of a virtual machine to be saved as the “OK” button is disabled (grey out).

1. Unable to save setting in VirtualBox in HP Compaq Elite 8300:-
   
2. This error message will appear when running the virtual machine:-
   “VT-x is disabled in the BIOS for all CPU modes
   (VERR_VMX_MSR_ALL_VMX_DISABLED”
   

Solution: enable VT-x in BIOS of HP Compaq Elite 8300.

1. Restart the PC, enter F10 to enter BIOS.
2. Under the “Security“ tab, use the up and down arrows to select “System Security“, and then press Enter.
   
3. Use the up and down arrows to select “Virtualization Technology (VTx)“, then use the left and right arrows to select either “Enabled“ or “Disabled“ as desired.
   

Source: https://support.hp.com/my-en/document/c04760917

1. Open the project’s root folder.
2. In Windows Explorer, right-click on project’s Main solution (.sln) → “Rename”.
   
3. Open the project in Visual Basic. In “Solution Explorer”, right-click on project → “Rename”.
   
4. In “Solution Explorer”, right-click on project → “Properties” → goto “Application” tab, rename “Assembly name” and “Default namespace” to match the project’s name.
   
5. If you wish to also rename the namespace, open one of your class files. Right click the namespace →”Rename…. ” This should search and replace all references to your namespace throughout the project.
6. Close the project. Delete the old “Solution User Option” (.suo).
   
7. In Windows Explorer, right-click on project’s subfolder → “Rename”.
   
8. Edit the .sln file and change the path of “.vbproj”.
   

Source: https://stackoverflow.com/questions/211241/how-can-i-rename-a-project-folder-from-within-visual-studio

Upon executing this SQL Statement:-

UPDATE `wp_ig_contacts`
INNER JOIN `wp_ig_lists_contacts` ON `wp_ig_contacts`.`id` = `wp_ig_lists_contacts`.`contact_id`
SET `wp_ig_contacts`.`updated_at` = "2021-07-06", `wp_ig_lists_contacts`.`status` = "unsubscribed"
WHERE `wp_ig_contacts`.`email` IN (SELECT `email` FROM `wp_ig_contacts_returned`)

If 1 email address belong to 1 group then 2 records will be updated:-

• 1 record in table “wp_ig_contacts” will be updated with `updated_at` = "2021-07-06"
• 1 record in table “wp_ig_lists_contacts” will be updated with `status` = "unsubscribed"

If 1 email address belong to 2 groups then 3 records will be updated:-

• 1 record in table “wp_ig_contacts” will be updated with `updated_at` = "2021-07-06"
• 2 records in table “wp_ig_lists_contacts” will be updated with `status` = "unsubscribed"
•