you can change how you view files from control panel/view
select between thumbnails,icons,list or details
you can also arrange icons by below.
re:slow opening of my computer.what are your system specs? how much ram do you have etc and have you defragged the hard drive lately?
spyware etc also may slow down the computer.
check task manager and look at the cpu usage.if its at 100% also look at the processes tab do you have lots of things running in the background? ie/more than 25-30 i would maybe run a check with spybot or adaware and remove anything they find click here click here