Smart Defrag

by IObitv11.4.0.508

Last updated Jun 13, 2026

Fast & Deep Defrag to Optimize Hard Drive & PC Performance

Install with winget

$ winget install --id IObit.SmartDefrag --exact --version 11.4.0.508

Run in Command Prompt, PowerShell, or Windows Terminal. Prompts for any agreements.

Silent install command for Smart Defrag

Smart Defrag uses EXE (Inno Setup). The silent install switches are /SP- /SUPPRESSMSGBOXES /NORESTART /VERYSILENT /INSTALLER.

One-line silent install (x86, machine scope)

smart-defrag-setup.exe /SP- /SUPPRESSMSGBOXES /NORESTART /VERYSILENT /INSTALLER

See the full silent install reference for Smart Defrag →

Built by Pckgr

For Intune admins

Stop chasing app updates. Pckgr patches them for you.

Automated application patching for Microsoft Intune. Pckgr keeps a curated library of 1,000+ apps continuously up-to-date in your tenant via Microsoft Graph - no manual repackaging, no chasing vendor sites.

Start free 30-day trial

No credit card required.

About

IObit Smart Defrag is a powerful defragmentation tool designed to optimize your Windows PC's performance. It reduces file fragmentation, speeds up data access, and enhances overall system efficiency. With features like Boot Time Defrag, SSD Trim, and Game Optimization, Smart Defrag ensures faster startup times, improved gaming performance, and extended disk lifespan. The user-friendly interface and automatic defragmentation make it an essential tool for maintaining a smooth and efficient PC.

Installers · v11.4.0.508

Architecture	Type	Scope	Install	Download
x86	EXE Inno Setup	machine		Direct

Copy a command tailored to that specific architecture, type, and scope - useful when winget would otherwise pick a different default.

Security

No known CVEs for Smart Defrag.

Coverage is best-effort and depends on a winget package mapping to an NVD CPE entry. Absence here is not a guarantee of safety.

Related apps

Driver BoosterIObit
IObit.DriverBoosterv13.4.0.234
No.1 free driver updater. Automatically scan and update 9,500,000+ device drivers for a smoother PC.
Advanced SystemCareIObit
IObit.AdvancedSystemCarev19.4.0.210
Speed up computer, clean your PC, and protect your private data. AI makes everything easier, and extraordinary.
iFun Screen RecorderIObit
IObit.iFunScreenRecorderv1.2.0.261
A free tool to record Windows screens without a time limit or watermark.
Random Password GeneratorIObit
IObit.RandomPasswordGeneratorv1.3
Protect Your Privacy with Powerful Passwords & Secured Password Manager
IObit UndeleteIObit
IObit.IObitUndeletev1.0.0.369
Light but Powerful File Recovery Tool
IObit Software UpdaterIObit
IObit.IObitSoftwareUpdaterv8.5.0.17
Update Your Software Instantly to Keep All Software at Best

More from IObit or browse defragmentation, optimization, performance.

Frequently asked questions

How do I install Smart Defrag on Windows?

Open Windows Terminal, PowerShell, or Command Prompt and run: winget install --id IObit.SmartDefrag --exact --version 11.4.0.508. winget downloads the installer from IObit and runs it. Requires Windows 10 (1809+) or Windows 11.

How do I install Smart Defrag silently for unattended deployment?

Add --silent and accept the agreements upfront: winget install --id IObit.SmartDefrag --exact 11.4.0.508 --silent --accept-package-agreements --accept-source-agreements. This is the variant Intune, Configuration Manager, and other deployment tools should use.

What are the silent install switches for Smart Defrag?

Smart Defrag uses EXE (Inno Setup). Run the downloaded installer with: smart-defrag-setup.exe /SP- /SUPPRESSMSGBOXES /NORESTART /VERYSILENT /INSTALLER. The silent switches are /SP- /SUPPRESSMSGBOXES /NORESTART /VERYSILENT /INSTALLER.

How do I uninstall Smart Defrag via winget?

Run: winget uninstall --id IObit.SmartDefrag --exact. Add --silent for unattended uninstalls. winget will use the registered uninstaller from Smart Defrag's Apps & Features entry.

Is Smart Defrag free?

Smart Defrag is distributed under Freeware. Refer to the publisher (https://www.iobit.com/iobitsmartdefrag.php) for the full license terms - Wingetly itself does not charge for installation.

Does Smart Defrag work on Windows 10?

Yes, as long as your Windows 10 build supports winget (1809 or newer). winget ships with App Installer on Windows 10/11 and pulls Smart Defrag directly from the publisher.

How do I keep Smart Defrag up to date?

Run winget upgrade --id IObit.SmartDefrag --exact, or winget upgrade --all to update everything winget tracks. We index 2 versions of Smart Defrag from microsoft/winget-pkgs.

Recent versions

11.4.0.508latest
11.3.0.476