Before restoring the operating system, it is essential to perform the following steps:
- B) Transfer contents to an external storage device.
- D) Remove the internal hard drive on which the operating system is stored.
In computer use, transferring contents to an external storage device is crucial to safeguard your data. Restoring the OS often involves formatting the internal drive which would result in data loss if not backed up.
Removing the internal hard drive where the operating system is stored can prevent accidental data loss and avoid potential conflicts during the restoration process.
But, disconnecting output devices (Option A) and disconnecting the UPS (Option C) are not typically required steps before restoring the operating system, so they are not as critical as transferring data and safeguarding the internal drive.