Should I block it?

60% of PCs block this file from running.
Possible reason:
Performance resource utilization

VersionsAdditional versions 87.10% 9.68% 3.23%



Smart Defrag by IObit Information Technology (Signed)

Remove AutoUpdate.exe
MD5:   a5dc9aff60b3e7500902267dcfa0c746
SHA1:   91ad9d1310d8c520ebd3aededfd9e05e9efdaf75


autoupdate.exe is an auto-starting process that used the Windows Task Scheduler service to load when the user logs into Windows (sometimes this is required to bypass the UAC protection). It is installed with a couple of know programs including Smart Defrag 3 published by IObit, Smart Defrag 3 from IObit and Smart Defrag 3 by IObit. The file is digitally signed by IObit Information Technology which was issued by the VeriSign certificate authority (CA).


File name:autoupdate.exe
Product name:Smart Defrag
Description:Smart Defrag Updater
Typical file path:C:\Program Files\iobit\smart defrag 3\autoupdate.exe
File version:
Product version:
Size:2.21 MB (2,312,480 bytes)
Build date:3/4/2014 2:11 AM
Issued to:IObit Information Technology
Authority (CA):VeriSign
Effective date:Monday, January 14, 2013
Expiration date:Sunday, February 14, 2016
Digital DNA
File packed:No
More details


The following programs will install this file
25% remove
Disk fragmentation is generally main cause of slow and unstable computer performance. Smart Defrag 3 helps defragment your hard drive more efficiently and optimize your disk performance. Smart Defrag 3 is a FREE, light, and stable disk defragment tool that provides efficient defragmentation to hard drives for faster file loading and outstanding disk performance. It can work automatically in the background on your PC, keeping hard disk r...
26% remove
SPAMfighter ApS.
45% remove
DRIVERfighter is typically bundled with 3rd party pay per install programs such as InstallIQ.


Scheduled tasks
  • The task 'SmartDefrag3_Update' runs on logon in the path 'C:\WINDOWS\Tasks\SmartDefrag3_Update.job'
Scheduled tasks startups
Set to load on user login (bypasses Windows UAC if enabled)
  • Login entry path '\SmartDefrag3_Update'

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 41.94%
Windows 7 Ultimate 12.90%
Windows 8.1 12.90%
Windows 8.1 Pro with Media Center 9.68%
Windows 8.1 Pro 6.45%
Windows 7 Professional 6.45%
Windows 8 6.45%
Microsoft Windows XP 3.23%

Distribution by countryDistribution by country

United States installs about 58.06% of Smart Defrag.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Acer 31.25%
Dell 31.25%
Hewlett-Packard 18.75%
Sony 12.50%
ASUS 6.25%
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