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is it safe to run chkntfs command while system is running (not at startup) to check the system health?

Posted on 2009-07-15
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Last Modified: 2012-05-07
Hi all,
Is it safe to run chkntfs command while system is running (not at startup) to check the system health? does it cause any problems or system hangs? i got the following error message (just once)on one of my critical systems, and i don't want to reboot the system as possible.

Event Type:      Error
Event Source:      Ntfs
Event Category:      (2)
Event ID:      55
Date:            7/15/2009
Time:            9:05:34 AM
User:            N/A
Computer:      XYZ
Description:
The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume SYSTEM.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 0c 00 04 00 02 00 52 00   ......R.
0008: 02 00 00 00 37 00 04 c0   ....7..À
0010: 00 00 00 00 02 01 00 c0   .......À
0018: 00 00 00 00 00 00 00 00   ........
0020: 00 00 00 00 00 00 00 00   ........
0028: 17 0b 14 00               ....    
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Question by:ksisletim
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Qlemo earned 250 total points
ID: 24858045
It is safe to do so. You can always perform a chkdsk without switches, which does only tests.

chkdsk /f or /r however (which perform repair actions) need to access the partition exclusively, and depending on the partition type (system, pagefile, data) this can't be done without rebooting.
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