Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 8.54%
6.3.9600.16384 (winblue_rtm.130821-1623) 0.50%
6.3.9600.16384 (winblue_rtm.130821-1623) 12.81%
6.3.9431.0 (winmain_bluemp.130615-1214) 1.26%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.25%
6.2.9200.16384 (win8_rtm.120725-1247) 12.31%
6.2.9200.16384 (win8_rtm.120725-1247) 62.56%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.50%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.50%
6.2.8250.0 (winmain_win8beta.120217-1520) 0.25%
6.2.8102.0 (winmain_win8m3.110823-1455) 0.50%

Relationships

Parent process
Child process
Related files

defrag.exe

Windows Drive Optimizer by Microsoft

Remove defrag.exe
Version:   6.2.9200.16384 (win8_rtm.120725-1247)
MD5:   cc34be87d4e9d78aab55af5d68a8281e
SHA1:   009fc0ca6a98819c00d20562798564da0f6eee4e
SHA256:   a93877f5a3bc1396e7195edab9e2411d5ee064d9d93eddb45fabe6ea03d51734
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is defrag.exe?

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.

About 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 y

DetailsDetails

File name:defrag.exe
Publisher:Microsoft Corp.
Product name:Windows Drive Optimizer
Description:Disk Defragmenter Module
Typical file path:C:\Windows\System32\defrag.exe
Original name:Defrag.EXE.MUI
File version:6.2.9200.16384 (win8_rtm.120725-1247)
Product version:6.2.9200.16384
Size:177 KB (181,248 bytes)
Digital DNA
File packed:No
.NET CLR:No
More details

BehaviorsBehaviors

Scheduled tasks
  • The task 'ManualDefrag' runs in the path '\Microsoft\Windows\Defrag\ManualDefrag'
  • The job 'ScheduledDefrag' runs in the path '\Microsoft\Windows\Defrag\ScheduledDefrag'
  • Entry path '\Microsoft\Windows\Defrag\ScheduledDefrag'

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.00444348%
0.028634%
Kernel CPU:0.00298256%
0.013761%
User CPU:0.00146091%
0.014873%
Kernel CPU time:526 ms/min
100,923,805ms/min
CPU cycles:161,628/sec
17,470,203/sec
Memory
Private memory:1.62 MB
21.59 MB
Private (maximum):4.26 MB
Private (minimum):1.97 MB
Non-paged memory:1.62 MB
21.59 MB
Virtual memory:47.41 MB
140.96 MB
Virtual memory (peak):48.68 MB
169.69 MB
Working set:1.05 MB
18.61 MB
Working set (peak):4.97 MB
37.95 MB
Page faults:3,390/min
2,039/min
I/O
I/O read transfer:0 Bytes/sec
1.02 MB/min
I/O read operations:1/sec
343/min
I/O write transfer:4 Bytes/sec
274.99 KB/min
I/O write operations:4/sec
227/min
I/O other transfer:5.33 KB/sec
448.09 KB/min
I/O other operations:6/sec
1,671/min
Resource allocations
Threads:4
12
Handles:98
600
GUI GDI count:4
103
GUI GDI peak:4
142
GUI USER count:1
49
GUI USER peak:1
71

BehaviorsProcess properties

Platform:64-bit
Command lines:
  • C:\Windows\System32\defrag.exe -c -h -o -$
  • "C:\Windows\System32\defrag.exe" -p 48c -s 0000000000000e00 -b C:
  • defrag /o /h C:
  • "C:\Windows\System32\defrag.exe" -p 200 -s 0000000000000274 -b C:
Owner:SYSTEM
Parent processes:

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 8.1 23.00%
Windows 8 21.00%
Windows 8 Pro 17.50%
Windows 8.1 Pro 10.50%
Windows 8 Single Language 7.00%
Windows 8.1 Single Language 4.00%
Windows 8 Pro with Media Center 4.00%
Windows 8.1 Pro with Media Center 3.00%
Windows 8 Enterprise 2.00%
Windows 8.1 Pro Preview 2.00%
Windows 8 Enterprise N 1.00%
Windows 8.1 Enterprise 1.00%
Windows Developer Preview 1.00%
Windows 8.1 N 0.50%
Windows 8.1 Enterprise Evaluation 0.50%
Windows 8 Enterprise Evaluation 0.50%
Windows 8 Pro N 0.50%
Windows 8.1 Single Language Preview 0.50%
Windows 8.1 Pro Preview with Media Center 0.50%

Distribution by countryDistribution by country

United States installs about 39.20% of Windows Drive Optimizer.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Lenovo 16.42%
ASUS 14.18%
Dell 14.18%
Toshiba 13.43%
Hewlett-Packard 13.06%
Acer 10.82%
Sony 7.46%
Intel 3.73%
GIGABYTE 2.99%
Samsung 1.49%
Alienware 0.75%
Medion 0.75%
American Megatrends 0.75%
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