when was the last time you defragged your computer. If you don't knop what that means then probably never I would guess.
When you write a file on a clean hard drive it saves the file in one piece. Then it saves the next file consecutively after that. But if you delete the first file and save a third file the third file gets saved in 2 places ( in the space where the deleted file was and in the space after the end of all other saved work. This leads to fragmented file - a bit here - a bit there. When you are trying to do something on the computer the program has to search all over the hard drive for all the bits and pieces of the file so you can open it. And that is often what makes the noises you are describing. You may need to defragment your computer.
To do this (if you have a PC)close ALL programs. Turn off your screen saver.
Go to START then PROGRAMS then ACCESSORIES. Look down the list for SYSTEM TOOLS and SCAN DISK. Run this program first and do a thorough scan. Then
Go to START then PROGRAMS then ACCESSORIES. Look down the list for SYSTEM TOOLS and DISK DEFRAGMENTER. Run this program clicking on the boxes for a complete defrag. Then go to bed. If you have never done this before it may take a long time. Leave the computer on cause it can do this while you are busy doing something else - like sleeping. You cannot use the computer for anything else while you are defragging. All files must be closed so I do my before I go to bed and in the morning it is finished.
Running scandisk first corrects errors in some files. Defrag puts the files together and adds all the files to the front of the disk leaving empty space at the back for new files.
Depending on how much you use the computer you may need to do this once a week or once a month. There was a while where I needed to do it every couple of days.
oh and you might want to print this out first for reference if you have never done this before
Rejoice in the healing and not in the pain.
Rejoice in the challenge overcome and not in the past hurts.
Rejoice in the present - full of love and joy.
Rejoice in the future for it is filled with new horizons yet to be explored. - Lee Marsh 2002