AfterDawn | News | Guides | Software downloads | Tech Support | Forums | HIGH.FI

IObit Smart Defrag v5.8.6.1286

Vista / Win10 / Win2k / Win7 / Win8 / WinXP
IObit SmartDefrag helps you to defragment your hard drives.

The main cause of slow/unstable PC performance is disk fragmentation. IObit SmartDefrag approaches this problem with its "Install it and forget it" mechanism. The software runs on the background and automatically defragments your hard drives when needed, making sure that your computer is always running as smooth as possible.


IObit Smart Defrag v5.0.2 IObit Smart Defrag v4.2.0 IObit Smart Defrag v2.0

iobit smartdefrag defrag iobit defragmentation defragment filesystem pc

License type Freeware1
Author's homepage Visit the author's site
Date added 29 Apr 2018
Downloads 44513
File size 12.03 MB (< 2min @ 1Mbps)
Supported languages English,  Finnish,  Swedish,  Norwegian,  Spanish,  Dutch,  Danish
Operating systems Vista / Win10 / Win2k / Win7 / Win8 / WinXP1

1License and operating system information is based on latest version of the software.

29 Apr 2018IObit Smart Defrag v5.8.6.1286(Latest stable version)
31 May 2017IObit Smart Defrag v5.6.0.1078
20 Apr 2017IObit Smart Defrag v5.5.1
18 Feb 2017IObit Smart Defrag v5.5.0
21 Jan 2017IObit Smart Defrag v5.4.0
11 Sep 2016IObit Smart Defrag v5.2.0
25 Jun 2016IObit Smart Defrag v5.1.0
08 Apr 2016IObit Smart Defrag v5.0.2
23 Feb 2016IObit Smart Defrag v4.4.0
29 Oct 2015IObit Smart Defrag v4.3.0
21 Aug 2015IObit Smart Defrag v4.2.0
28 May 2015IObit Smart Defrag v4.1.0
06 May 2015IObit Smart Defrag v4.0.3
11 Mar 2015IObit Smart Defrag v4.0.2
31 Dec 2014IObit Smart Defrag v3.3.0.384
28 Oct 2014IObit Smart Defrag v3.3.0.368
07 Jul 2014IObit Smart Defrag v3.2.0
17 Mar 2014IObit Smart Defrag v3.1.0.319
14 Jan 2014IObit Smart Defrag v3.0.3
05 Dec 2013IObit Smart Defrag v3.0.1.189 Beta 1.0
25 Sep 2013IObit Smart Defrag v2.9.0
10 Aug 2013IObit Smart Defrag v2.8.1.1221
01 Jul 2013IObit Smart Defrag v2.8.0.1211
20 Jun 2013IObit Smart Defrag v2.8.0.1210
18 Dec 2012IObit Smart Defrag v2.7.0.1163
29 Sep 2012IObit Smart Defrag v2.6.0.1162
07 Jul 2012IObit Smart Defrag v2.5.0.1160
13 May 2012IObit Smart Defrag v2.4
09 Jan 2012IObit Smart Defrag v2.3
25 Aug 2011IObit Smart Defrag v2.2.0.1112
13 Jun 2011IObit Smart Defrag v2.1.0.1111
14 Apr 2011IObit Smart Defrag v2.0.1
18 Mar 2011IObit Smart Defrag v2.0
09 Mar 2011IObit Smart Defrag v2 Beta 3.0
01 Feb 2011IObit Smart Defrag v2 Beta 2.0
19 Jan 2011IObit Smart Defrag v2 Beta 1.21
15 Jan 2011IObit Smart Defrag v2 Beta 1.2
16 Dec 2010IObit Smart Defrag v2 Beta 1.1
07 Dec 2010IObit Smart Defrag v2 Beta 1.0
07 Aug 2010IObit Smart Defrag v1.50
31 Mar 2010IObit Smart Defrag v1.45
07 Jan 2010IObit Smart Defrag v1.40
12 Nov 2009IObit Smart Defrag v1.30
02 Jul 2009IObit Smart Defrag v1.20
19 Feb 2009IObit Smart Defrag v1.11
20 Jan 2009IObit Smart Defrag v1.1.0.2
17 Jan 2009IObit Smart Defrag v1.10
23 Oct 2008IObit Smart Defrag v1.02
18 Oct 2008IObit Smart Defrag v1.02 Beta
21 Oct 2008IObit Smart Defrag v1.01 Updated
18 Oct 2008IObit Smart Defrag v1.01
09 Sep 2008IObit Smart Defrag v1.0
19 Aug 2008IObit Smart Defrag Beta 6.10
07 Aug 2008IObit Smart Defrag Beta 6.00
18 Apr 2008IObit Smart Defrag Beta 5.01
09 Jan 2008IObit Smart Defrag Beta 4.03
07 Dec 2007IObit Smart Defrag Beta 4.02
19 Oct 2007IObit Smart Defrag Beta 4.01
18 Oct 2007IObit Smart Defrag Beta 4
28 Jul 2007IObit Smart Defrag Beta 3.1
06 Jun 2007IObit Smart Defrag Beta 3
02 Jun 2007IObit Smart Defrag Beta 3 RC
30 May 2007IObit Smart Defrag v2.10 Beta 3
If you do not have an accout yet, please enter a nickname and your email address below.

We will send an account activation link to the email address you provide, so please make sure to use a valid address. Content will be published on site after you have activated your account.

If you already have an account, please login using the next tab.

Login by using your AfterDawn username or your email address.

Unverified new user
IObit Smart Defrag v3.0.3

Iobit smart defrag is a cool fast and important 100 % safe for your HDD and DATA. But its not a full version But iobit say its full version wrong the boot time defrag not a fully defrag of boot time. Iobir was release smart defrag 2.8 pro fully support for boot time

15 Jan 2014

Installer information

Important information regarding software downloads at's software section

We have partnered with Air Installer to cover part of the software hosting and maintaining costs at

Clicking the Download button will download the setup file to your computer.

Opening this file launches Air Installer to manage your installation process, which may offer additional and optional offers from 3rd party software advertisers.

If you wish to download the original version of this software you can do so at the author's homepage (see Info tab on the left).