I have owned my win8 mid-tower for over a year and thought it would be good to defragment it. I began to defragment by right clicking the drive. I discovered it has been default set to defragment weekly. It has been doing this all along.

The time stamp on the last defragment is when I usually use my computer a lot. I do not leave my computer on for long periods of time. I assume it defragments between pauses in my computer usage. Therefore I assume I interrupt the defragmenting process quite often.

My question is will it eventually cause problems since I keep interrupting the defragmenting process?

I have a i7 haswell midtower, 15GB memory, 2TB HD & Windows 8 Pro.

Fragmentation makes your hard disk do extra work that can slow down your computer. Removable storage devices such as USB flash drives can also become fragmented. Disk Defragmenter rearranges fragmented data so your disks and drives can work more efficiently. Disk Defragmenter runs on a schedule, but you can also analyze and defragment your disks and drives manually.It depends upon you how you want to run it.

Disk Defragmenter in windows 7 has now been changed to Optimize Drives in Windows 8/8.1.

What is disk defragmentation?

The link is for Windows 7 that I have provided however, this explains better what defragmentation does.

If you don't want to run the Disk Defragment as a task, then go ahead and cancel/remove the task for Task Scheduler.

To delete the task follow the steps below:

On the Start menu, swipe in from the right side of the screen or press the Windows logo key + C to bring up the Charm bar.

Left-click on Settings button in Charm Bar.

Left-click on Tiles in Settings.

Drag the Show/hide administrative tools slider to the Yes position.

Left-click on background of the Start menu, making the Charm bar disappear.

Once the administrative tools appear, left-click on Task Scheduler.

Find and click the task folder in the console tree that contains the task to delete.

In the console window, click the task to delete.

In the Actions pane, click Delete.

In the Confirm delete dialog box, click Yes.