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What is defrag.exe?

Part of Windows Drive Optimizer 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 64-bit program executes with the privileges as the currently logged in user account. defrag.exe is executed by the process services.exe (ระบบปฏิบัติการ Microsoft® Windows® 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.


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.
0.00164% CPU16380.7%
Average CPU utilization across all programs is 0.00001%.
     1.62 MB RAM7.5%
Average private memory utilization across all programs is 21.53 MB.
 5 /min0.2%
Average I/O read and write operations for all programs is 2,253 per minute.
         4 GDI objects2.7%
Average number of GUI GDI and USER objects for all programs is 150.
Typical file (disk image) location:

Are there other versions of Windows Drive Optimizer?

Why are multiple of the same versions listed?

What else is related?

What Windows OS versions does this run on?

Windows 8 (6.2.9200.0)
Windows 8 Enterprise (6.2.9200.0)
Windows 8 Enterprise N (6.2.9200.0)
Windows 8 Pro (6.2.9200.0)
Windows 8 Pro N (6.2.9200.0)
Windows 8 Pro with Media Center (6.2.9200.0)
Windows 8 Single Language (6.2.9200.0)
Windows Server 2012 Standard Evaluation (6.2.9200.0)

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 Drive Optimizer
Description: Disk Defragmenter Module
Version: 6.2.9200.16384 (win8_rtm.120725-1247)
Product version: 6.2.9200.16384
Size: 177 KB
Original file name: Defrag.EXE.MUI
Windows file protection: Yes

Resource utilization

CPU utilization averages
Total CPU: 0.0047417027%
Privileged CPU: 0.0031036322%
User CPU: 0.00163807047254%
Privileged CPU time: 631.25 ms
Privileged CPU time /min: 0 ms
CPU cycle count: 538,760,490
CPU cycle count /min: 9,697,678
Memory utilization averages
Committed memory: 47.41 MB
Peak committed memory: 48.68 MB
Paged memory: 1.62 MB
Peak paged memory: 1.71 MB
Paged system memory: 82.18 KB
Non-paged system memory: 8.06 KB
Working set memory: 1.05 MB
Peak working set memory: 4.97 MB
Min working set memory: 1.05 MB
Private memory: 1.62 MB
Page faults: 3,390
Page faults /min: 57
Process I/O averages
Total read operations: 1
Read operations /min: 1
Total read transfer: 0 Bytes
Read transfer /min: 0 Bytes
Total write operations: 655
Write operations /min: 4
Total write transfer: 655 Bytes
Write transfer /min: 4 Bytes
Total other operations: 417
Other operations /min: 6
Total other transfer: 267.4 KB
Other Transfer /min: 5.33 KB
GUI Object Averages
GDI objects: 4
Peak GDI objects: 4
USER objects: 1
Peak USER objects: 1
Handle count average: 98
Thread count average: 4
Thread resource averages

Process details

Runs as (owner): User
Integrety level: High
Windows platform: 64-bit
Runs as a service: Yes
Parent Processes
Child Processes
Process Commands
defrag /o /h C:
"C:\WINDOWS\system32\defrag.exe" -p 200 -s 0000000000000274 -b C:
C:\WINDOWS\system32\defrag.exe -c -h -o -$
C:\Windows\system32\defrag.exe -c -h -o -$

Scheduled task details

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

Image hashes

MD5: cc34be87d4e9d78aab55af5d68a8281e
SHA-1: 009fc0ca6a98819c00d20562798564da0f6eee4e
SHA-256: a93877f5a3bc1396e7195edab9e2411d5ee064d9d93eddb45fabe6ea03d51734

PE image details

File packed: No
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