Should I block it?
No, this file is 100% safe to run.
 
Additional versions
 
Relationships
     
    
        Defrag.exe
Windows Disk Defragmenter by Microsoft and Executive Software International
| Version:    | 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) | 
| MD5:    | 8cb76728a17487c7317ad95723817881 | 
| SHA1:    | b42a0fd7aeb2a43f5e6bc01c6fcf4b6ba3c3bfbf | 
| SHA256:    | b9ceee6fbb47def7712f0da8af4b65d5e69097d9831c76741d17770d4a5258d9 | 
This is a Windows system installed file with Windows File Protection (WFP) enabled.
Overview
defrag.exe executes as a process with the local user's privileges. This version is installed on Windows XP.
Details
| File name: | defrag.exe | 
| Publisher: | Microsoft Corp. and Executive Software International, Inc. | 
| Product name: | Windows Disk Defragmenter | 
| Description: | Disk Defragmenter Module | 
| Typical file path: | C:\Windows\System32\defrag.exe | 
| File version: | 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) | 
| Product version: | 5.1.2600.2180 | 
| Size: | 24.5 KB (25,088 bytes) | 
| Digital DNA | 
| PE subsystem: | Windows Console | 
| File packed: | No | 
| Code language: | Microsoft Visual C++ | 
| .NET CLR: | No | 
More details
Behaviors
Scheduled tasks
- The job 'defrag' runs daily in the path 'C:\WINDOWS\Tasks\defrag.job'
 
- Entry path 'C:\WINDOWS\Tasks\defrag.job'
 
Distribution by Windows OS
| OS version | distribution | 
| Microsoft Windows XP | 
100.00% | 
 | 
Distribution by country
United States installs about 66.67% of Windows Disk Defragmenter.
Distribution by PC manufacturer
| PC Manufacturer | distribution | 
| Toshiba | 
100.00% | 
 |