Defrag helps speed up data access, which means files and programs on the PC open smoother and faster than on a fragmented drive. Fragmentation occurs on Windows systems whenever files are added/edited/deleted etc and defragging regularly helps to prevent related performance loss like slowdowns, lags etc.
You don't need to defrag the system reserve but if you want to anyway there is a program called auslogis disk defrag that lets you defrag system reserve
Defrag
depends on the OS, but for most it is : defrag <DRIVE> example: defrag c:
No! In fact, it's best that you're NOT online while doing a defrag. Anytime defrag hits a part of a hard drive where the information is changing, defrag restarts doing that portion of the drive. While on the Internet, your PC is constantly sending and receiving files and changing what's on the hard drive. Your defrag will take a lot longer.
Start-All programs-accesories-Systerm tools-defrag
Many people believe that your computer will work more efficiently if you defrag it regularly.
Usually not, The best Defrag program to use is the one the came Pre Installed in windows its located under Start, All Programs, Accessories, Tools - Or System Tools Defrag. What defrag does is put similar files together in order kinda like how a library puts books on a shelf, That way they can find them easier defrag is virtually the same.
1 . Mac machines which comes with HDD requires defragmentation. SSD's no need. 2 . You don't need to regularly defrag a Mac's hard drive, OS X has HFS+ file ,which automatically defrag files of certain size. 3. Download Stellar Drive Defrag 4.. Install it and scan whole Mac, it will take some time and defrag your Mac properly.
A defrag program sometimes skips the files that contain like 2-4 fragments so it won't need to make space for that file because it's to large. Some programs have the option to defrag to defrag every file without skipping one.
Fragment, defrag.
A defrag should not affect your videos at all. However, it could affect your media player(s).
It would'nt take forever but yes, normally the bigger your hard drive is, the longer it takes to defrag. It also depends on how bad the hard drive is in need of the defrag.