At least once every 6 months.
You don't want to clean your hard drive as you risk damaging it. Dust won't hurt it under normal use.
You should NEVER unplug your hard drive with your computer still powered on. It will destroy the drive.
maybe RAID
reformat the computer.
Do a Defrag. and a Disc clean-up
You should only touch the outside of a hard drive. The parts of the hard drive you should not touch are inside. The hard drive is sealed and if you break the seal, you void any warranties and risk any data you have inside.
of course. its a disk cleaner that helps delete unused data and makes more space in your hard drive.
Changes are that it's a fan and not the hard drive. However, if it is the hard drive, chances that the internal bearings are going bad. I'd replace the drive and transfer the contents as soon as possible, before the drive completely crashes.
In order to completely wipe a hard drive on a Canon branded copier, one must format the hard drive. Formatting the hard drive will erase all information. The operating system of the copier can then be re-installed.
You should perform regular backups of a hard drive at least weekly.
completely wipes a hard drive clean
completely wipes a hard drive clean