according to me, do the both
Backup files should be kept in a different location [CD, thumb drive, external drive] in case your computer breaks down. If the hard drive fails or the operating system crashes, you have your files safe somewhere.
Put all important files in an external hard drive, delete all files on the computer, not the external drive, empty the recycle bin, copy drive to computer, then you're done.
There are hard drive interface devices for not much money that will copy the files off of the hard drive--onto another computer. The adapters are called 2.5" External Enclosures, and are readily available.AnswerYou pretty much don't. If you can't log on to the computer, you can't access the files. If it's your computer, you might be able to remove the drive and attach it to another computer and access the files that way.
No, you have to also delete what you want from the external hard drive. Remember, an external hard drive is just like a internal one. So, for example, if you delete picture a on the internal hard drive, that's all that is deleted. If picture a is also on the external hard drive (why would it be though), then you need to also delete it there.
External storage are computer hardwares that allows you to store files and other computer memorizes outside of the computer. External hard drive is a form of external storage and are generally portable.
You can defragment an external drive connected to a computer running Windows by opening the disk defragment tool and selected the external drive. Though if the external drive is an SSD, there would be no point in defragmenting it or "rearranging files" as there are no parts that need to be moved before the file can be accessed.
An external hard drive is a device similar to your computer's hard drive. The difference is that it is portable. You can save files on it and it can be connected to most other computers.
Think of an external hard drive like a normal hard drive working outside your computer, they work very much in the same way. Normally (unless you are using a SCSI, PATA, or eSATA hard drive), they can be connected to your computer via a Firewire or USB connection. If you have a key-drive (aka USB memory stick), they work like a miniature external hard drive in the sense that they store date in an external format; an external hard drive is just like a large key-drive. With both a key-drive and an external hard drive, you simply connect it to your computer, and access its files. When you want to access your internal hard drive, you go to My Computer and then select the C: drive; The external hard drive is a similar process, you select it's icon (located either on the desktop or My Computer) and then you can access its files like a normal hard drive. You can drag files out of it onto your desktop, or alternatively, drag files into it to transfer files from your computer.
This process differs depending on your Operating System, but in most windows computers, this process can be accomplished by first connecting your external hard drive, then clicking "Start". You can then click "My Computer" and find the external hard drive in the drives listed there. Then, double-click on the external hard drive's icon, and find the files you want to transfer. Right click on them, and select copy. Next, open the directory on your computer that you want to transfer the files to. Then, right-click and hit paste.
It depends on the type of file you are talking about.If you back up your documents (Word, Excel) or photographs then you can certainly delete them from your computer hard drive once they're on the external hard drive. If you need them again you can simply plug the external hard drive to the computer in order to access them.If you're talking about program files than you have to consider whether or not the external hard drive will always be plugged into your computer. If you move a program file and then unplug the external hard drive then you should not delete the files unless you plan on plugging the external hard drive in (or leaving it attached) every time you want to use that program. If you don't mind accessing a program from the external hard drive every time you need to use it than you can certainly delete it from your computer hard drive. Otherwise, make a copy to the external hard drive as a backup in case you have computer problems and leave the original version you want to run regularly on your computer.
Connect an external hard drive to your computer and copy over important files.
Think of an external hard drive like a normal hard drive working outside your computer, they work very much in the same way. Normally (unless you are using a SCSI hard drive), they can be connected to your computer via a Firewire or USB connection. If you have a key-drive(aka USB memory stick),they work like a miniature external hard drive in the sense that they store date in an external format; an external hard drive is just like a large key-drive. With both a keydrive and an external hard drive, you simply connect it to your computer, and access its files. When you want to access your internal hard drive, you go to MyComputer and then select the C: drive; The external hard drive is a similar process, you select it's icon (located either on the desktop or MyComputer) and then you can access its files like a normal hard drive. You can drag files out of it onto your desktop, or alternatively, drag files into it to transfer files from your computer.