Is it OK to perform other tasks during defragment?

Simple questions as in the title :)

This question is asked on the assumption that other tasks should NOT be performed when burning a disc....

Thank you, you are so quick :) By the way, the system says only to defrag when it is 10% fragment but someone says that we should do it anyway in a few weeks as a minimum. What's your comment on that please?

I use Windows built-in defragger set to run weekly on 2 different hard drives, automatically. I'm never aware of when it is running.

When analyzed, the drives usually show as "0% fragmented". Neither has ever shown more than 3% fragmentation. I have not manually fragmented either drive in the last 4 years.

I've come to the conclusion that most people defragment because they feel some anxiety if they don't, rather than because the drive is not performing well. Anxiety is tough to deal with, so I understand the reaction.

Just analyzed my drives while writing this post. As usual, both at 0% fragmentation.

ok thanks. Actually just before posting this thread I defragmented my pc when it was 1%.... not sure if I should but do it anyway because it has been about 2 months since I did it last time.

I like Puran Boot Time free defragger, which reboots to run a Full Disk Check and then Defrag in boot mode so that the OS files are not running and can themselves be defragged.


I learned about this when we traced a 2 minute boot to fragmentation. It was a very slow and old HD, but Puran Boot defrag cut the boot time in half.


It's intelligent Optimizer on Additonal Operations tab will move most-used files to the outer edge of HD for faster reads.


Be sure to monitor your System Restore points after defrag to see that it is not deleting them.


I defrag every quarter or twice a year at the most, preceding it with CCleaner "Run Cleaner" button and then on Registry tab "Check for Issues" and "Fix Issues" found.

I just let the Windows 7 defragmenter do its thing and have never had an issue.