How long to defragment my hard drive?
wow not defragmenting for 5years thats a lot ^^ if the hard drive is 40gb it will take about 30min. and for the chkdsk go here for more info : http://www.updatexp.
In my opinion, how long it will take depends on the files on your computer and the fragmentation rate of your hard disk. But I think it will take a very long time for you have never run a disk defragmenter for 5 years. If you like, you can go here for some help: http://advanceddefrag.com/blog. Good luck!