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What is defrag.exe?

Part of Windows Disk Defragmenter by Microsoft

What is it?

Disk Defragmenter is a utility in Microsoft Windows designed to increase access speed by rearranging files stored on a disk to occupy contiguous storage locations, a technique called defragmentation. Defragmenting a disk minimizes head travel, which reduces the time it takes to read files from and write files to the disk. Beginning with Windows XP, Disk Defragmenter also reduces system startup times.
Description of defrag.exe from Microsoft
Disk Defragmenter consolidates fragmented files and folders on your computer's hard disk, so that each occupies a single, contiguous space on the volume As a result, your system can gain access to your files and folders and save new ones more efficiently. By consolidating your files and folders, Disk Defragmenter also consolidates the volume's free space, making it less likely that new files will be fragmented. You can also defragment disks from a command line using the defrag command.
(defrag.exe is a system file that is installed with Windows)
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How does defrag.exe run?

Process - defrag.exe is an instance of a running program. This program executes under the SYSTEM account within Windows with extensive privileges on the local computer, and acts as the computer on the network. defrag.exe is executed by the process services.exe (Services and Controller app by Microsoft).

How does defrag.exe start?

Scheduled task - defrag.exe is launched automatically by registering itself into the Windows Task Scheduler under the task name '\Microsoft\Windows\Defrag\ScheduledDefrag'. Task Scheduler provides the ability to schedule the launch of programs or scripts at pre-defined times or after specified time intervals or even with event-based triggers.

Community

What is the community is seeing?What is the community is doing?
About 0.5% of all Boost users have the defrag.exe process running.Of the 0.5% of defrag.exe users, less than 1% have disabled it.
How resource intensive is defrag.exe?
Comparison based on the average resource utilization across all programs.
0.00432% CPU43218.2%
Average CPU utilization across all programs is 0.00001%.
     985.33 KB RAM4.5%
Average private memory utilization across all programs is 21.53 MB.
 1 context switches/sec1.0%
Average context switches for all programs is 100 per second.
Typical file (disk image) location:
C:\Windows\System32\defrag.exe

Are there other versions of Windows Disk Defragmenter?

Why are multiple of the same versions listed?

What else is related?

What Windows OS versions does this run on?

Microsoft Windows XP (5.1.2600.196608)
Windows 7 Home Basic (6.1.7600.0)
Windows 7 Home Premium (6.1.7600.0)
Windows 7 Professional (6.1.7600.0)
Windows 7 Starter (6.1.7600.0)
Windows 7 Ultimate (6.1.7600.0)
Windows 7 Ultimate N (6.1.7600.0)
Windows Seven Black Edition (6.1.7600.0)
Windows 7 Ultimate (6.1.7600.65536)
Windows 7 Enterprise (6.1.7601.65536)
Windows 7 Home Basic (6.1.7601.65536)
Windows 7 Home Premium (6.1.7601.65536)

About Microsoft Corp.

Microsoft, founded in 1975 by Bill Gates and Paul Allen, is a veteran software company, best known for its Microsoft Windows operating system and the Microsoft More...
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File details

File name: defrag.exe
Publisher: Microsoft Corp. (verified)
Name: Windows Disk Defragmenter
Description: Disk Defragmenter Module
Version: 6.1.7600.16385 (win7_rtm.090713-1255)
Product version: 6.1.7600.16385
Size: 172 KB
Original file name: Defrag.EXE.MUI
Windows file protection: Yes

Resource utilization

CPU utilization averages
Total CPU: 0.0077621211%
Privileged CPU: 0.0034403059%
User CPU: 0.00432181524927%
Privileged CPU time: 15.6 ms
Privileged CPU time /min: 0 ms
CPU cycle count: 147,239,695
CPU cycle count /min: 306,855
Context switches /sec: 1
Memory utilization averages
Committed memory: 20.36 MB
Peak committed memory: 20.77 MB
Paged memory: 985.33 KB
Peak paged memory: 1020 KB
Paged system memory: 33.64 KB
Non-paged system memory: 3.47 KB
Working set memory: 2.74 MB
Peak working set memory: 3.52 MB
Min working set memory: 2.74 MB
Private memory: 985.33 KB
Page faults: 1,046
Page faults /min: 2
Resources
Handle count average: 81
Thread count average: 5
Thread resource averages

Process details

Runs as (owner): System
Integrety level: System
Windows platform: 32-bit
Runs as a service: Yes
Parent Processes
Process Commands
"C:\Windows\system32\defrag.exe" -p 3c0 -s 0000098C -b C:
C:\Windows\system32\defrag.exe -c
"C:\Windows\system32\defrag.exe" -p 3f8 -s 000007F0 -b C:
C: /a /v

Scheduled task details

Name: ManualDefrag
Command: \Microsoft\Windows\Defrag\ManualDefrag

Image hashes

MD5: 9e759edde1e45a4e55752cd2ed321f89
SHA-1: 380e867c6625aeed69b5c86ed42ed9e98b9c23b3
SHA-256: 364c98de9b220fc3d2e26a48296359c71df1b3774eb9153e964f6486037c5b98

PE image details

Subsystem: Windows Console
Langauge*: Microsoft Visual C++
File entropy: 7.28274
File packed: No
Import Table
advapi32.dll
kernel32.dll
msvcrt.dll
ntdll.dll
ole32.dll
sxshared.dll
user32.dll
virtdisk.dll
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