Zend certified PHP/Magento developer

Do extra steps need to be taken when powering on a HDD that has not been powered on in a long time?

I have a HDD that is probably 20 years old and has not been powered up for 10-15 years. I am interested in seeing what is on it. Are there steps I should be taking before attempting to power it up and retrieve data given it is not spun in such a long time?