I have a dell pc but it has only 20gb of hard drive. I want to buy new hard drive, external, how do I make this my primary drive and transfer all software on to it? Will any hard drive do or is there only certain ones compatible?
20gb is more than adequate to hold OS and program files. Add new HD (as big as you can afford) as slave, transfer all data, docs, tunes, pics, etc. and OE Store folder to this drive. Buy Acronis TI and make backup of your C drive on new D drive. For instructions to fit new drive, Google for 'how to fit a slave hard drive'. Do not move My Documents to D:, just open new folders and save to these locations.
Running software from an external HD should present no problems. Unless you are a mad keen bonkers gamer you will notice no difference in speed even if the connection is a USB1. You can transfer as much as you like to the ext. HD and with prices of about £60 for a 300GB it makes sense. All you need to do is plug it in and your computer will recognise it straight away and you can then copy and paste all the programmes you want to.