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Cannot Defrag my .pst file


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#1
ProEd

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When I run MS defrag on my tower PC & on my laptop I get a message that my .pst file cannot be defragged. So, I have visited some websites & searched G2G, but I am receiving conflicting recommendations.

Help will be appreciated. Where to now?

Sincere thanks.... ProEd
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#2
SpywareDr

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Question 1: Do you have enough free space on your hard drive?

Question 2: Is Outlook open while you're attempting to defrag?

The most common cause for files not getting defragged is that there's not enough free space on the hard disk to do so. If there's not enough room for a second, temporary, copy of the file then the file cannot be defragged. Most defraggers require that you have enough free space on your hard disk for a copy of the largest file that needs defragging, or some percentage of free space on the hard drive, like 10% or 15%.

The second most common cause is that the file is in use by some program. That's why most defragging utilities suggest you close down all running programs prior to attempting to defrag.

Another cause, (but probably not applicable in this case), is that the operating system itself often has files open, and open files cannot be defragged. One very common example is windows paging or swap file.
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#3
123Runner

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To add a little more.

Open files and running programs would also be the programs running at startup that are now in the taskbar by the system clock. Those also could cause defrag to not work.
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