How to Create a macOS Bootable USB Flash Drive on Mac (Step-by-Step Guide 2026)

If you're looking to create a macOS bootable USB installer,

you're in the right place. This guide is optimized for Mac users in the USA and globally who want a fast, reliable way to install or reinstall macOS.

Whether you're fixing system errors, upgrading your Mac, or doing a clean install, a bootable USB drive is essential.

---

📌 Table of Contents

• Watch Video Tutorial
• Best USB Drives (Recommended)
• Requirements
• Download macOS Installer
• Prepare USB Drive
• Create Bootable USB
• Boot from USB
• Pro Tips

---

🎥 Watch Video Tutorial

---

🔥 Best USB Flash Drives for macOS Bootable Installer (Amazon Picks)

Choosing the right USB drive is critical. A slow or fake USB can cause installation errors. Below are some of the best-performing USB drives commonly recommended for macOS installers:

• SanDisk Ultra Flair USB 3.0 (32GB / 64GB) – Fast speeds up to 150MB/s, reliable for macOS installs
• SanDisk Ultra Luxe USB 3.1 – Premium metal build with high durability
• Samsung BAR Plus USB 3.1 – Strong metal design and excellent performance

👉 Pro Tip: Always go for at least 32GB USB 3.0 for faster installation.

---

🧰 Requirements

• MacBook or iMac
• USB Flash Drive (16GB minimum, 32GB recommended)
• macOS Installer from App Store
• Internet connection

---

📥 Step 1: Download macOS Installer

Download your desired macOS version from the App Store (e.g., macOS Mojave, Ventura, Sonoma).

• Open App Store
• Search macOS version
• Click Get

SEO Tip: Popular searches include “download macOS installer USB” and “macOS bootable USB guide”.

---

💽 Step 2: Prepare USB Drive

1. Insert USB
2. Open Disk Utility
3. Select USB
4. Click Erase
5. Name: MyVolume
6. Format: Mac OS Extended (Journaled)

⚠️ This will delete all data.

---

💻 Step 3: Create Bootable USB via Terminal

Open Terminal and paste the command for your macOS version.

sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

• Press Enter
• Enter password
• Type Y → Enter

The system will now create your bootable USB installer.

---

🚀 How to Boot macOS from USB

1. Restart Mac
2. Hold Option (⌥) key
3. Select USB drive
4. Install macOS

---

💡 Pro Tips for Better Results

• Use USB 3.0 or higher
• Always download macOS from official sources
• Keep Mac plugged in
• Avoid cheap or fake USB drives

---

✅ Conclusion

Creating a macOS bootable USB drive is simple and extremely useful. With this guide, you can install or reinstall macOS anytime without relying on internet recovery.

For more tutorials, visit iMAT and stay updated with the latest tech guides.

---

Install macOS on an External Hard Drive — Full Step-by-Step Guide (2026)

Want to run macOS from an external hard drive or SSD?

Whether you're testing a new macOS version, creating a portable setup, or keeping your main system safe — installing macOS on an external drive is a powerful solution.

In this complete step-by-step guide, you'll learn exactly how to install macOS on an external hard drive using a bootable USB installer.

---

📌 Table of Contents

• 🎥 Watch Full Video Tutorial
• 🧰 Requirements
• 💾 Step 1: Create Bootable macOS USB
• 🧹 Step 2: Format External Drive
• 🔄 Step 3: Boot into macOS Installer
• ⚙️ Step 4: Install macOS on External Drive
• 🚀 Step 5: First Boot Setup
• 🔁 Step 6: Switch Between Drives
• 💡 Pro Tips
• ❓ FAQs

---

🎥 Watch Full Video Tutorial

---

🧰 Requirements

• MacBook or iMac
• External Hard Drive or SSD (recommended SSD for speed)
• Bootable macOS USB Installer
• Backup of your important data

---

💾 Step 1: Create Bootable macOS USB

Before installing macOS, you need a bootable USB installer.

• Download macOS from the App Store
• Use Terminal or a tool to create bootable USB
• Plug the USB into your Mac

Tip: You can follow my separate tutorial for creating a macOS bootable USB. Click here to watch

---

🧹 Step 2: Format External Hard Drive

Now prepare your external drive:

1. Connect your external drive to your Mac
2. Open Disk Utility
3. Select your external drive
4. Click Erase
5. Name it (e.g., macOS External)
6. Choose:
   • Format: Mac OS Extended (Journaled) or APFS
   • Scheme: GUID Partition Map
7. Click Erase

⚠️ Warning: This will delete all data on the drive.

---

🔄 Step 3: Boot into macOS Installer

1. Keep USB + external drive connected
2. Restart your Mac
3. Hold the Option (⌥) key while booting
4. Select macOS Installer USB

Your Mac will now boot into macOS Recovery/Installer mode.

---

⚙️ Step 4: Install macOS on External Drive

1. Open Disk Utility (if needed)
2. Ensure drive is formatted as APFS
3. Exit Disk Utility
4. Click Install macOS
5. Agree to terms
6. Select your external drive
7. Click Install

The installation will take around 30–40 minutes and your Mac will restart multiple times.

---

🚀 Step 5: First Boot Setup

After installation:

• You'll see the macOS welcome screen
• Set up language, Wi-Fi, Apple ID
• Complete the setup process

Congratulations 🎉 You are now running macOS from your external drive!

---

🔁 Step 6: Switch Between Drives

Method 1: From macOS Settings

• Go to Startup Disk
• Select desired drive
• Click Restart

Method 2: Boot Menu

• Turn off your Mac
• Power ON + hold Option (⌥)
• Select the drive you want

---

💡 Pro Tips

• Use an SSD instead of HDD for better speed
• USB 3.0 or USB-C recommended
• Keep backup before formatting
• First boot may take longer

---

❓ FAQs

Can I run macOS smoothly from an external drive?

Yes, especially with SSD. HDD will be slower.

Will it affect my main macOS?

No, your internal drive remains untouched if you select the correct disk.

Can I install Windows alongside?

Yes, using Boot Camp on internal or separate partitions.

---

🏁 Final Thoughts

Installing macOS on an external hard drive is easier than you think. It gives you flexibility, portability, and a safe testing environment without touching your main system.

If this guide helped you, make sure to check out more tutorials on iMAT 🚀

DT Watch 11 Pro vs DT Ultra 4 Pro – Full Comparison (Which One Should You Buy?)

If you're looking for the best Apple Watch Alternative in 2026,

two of the most popular options right now are the DT Watch 11 Pro (46mm Series 11 alternative) and the DT Ultra 4 Pro (49mm Ultra 3 alternative).

Both smartwatches offer premium design, AMOLED displays, and advanced features at a budget price. But which one is actually better for YOU?

In this detailed comparison, we’ll break down everything including design, display, features, battery life, and real-world usage.

---

📌 Jump to Section

• 🎥 Watch Full Comparison
• ⌚ Design & Size
• 📱 Display Quality
• ⚙️ UI & Watch Faces
• 📲 Features & Apps
• 💾 Storage & Media
• 🔋 Battery Life
• 🏆 Final Verdict

---

🎥 Watch Full Comparison

---

⌚ Design & Size Comparison

The DT Watch 11 Pro comes in a 46mm body, while the DT Ultra 4 Pro features a larger 49mm rugged design.

• DT Watch 11 Pro → Sleek & lightweight (best for small wrists)
• DT Ultra 4 Pro → Bigger & rugged (best for sporty users)

Both watches support interchangeable straps and are compatible with aftermarket accessories.

Water Resistance: Both are only light waterproof (rain & hand washing). Not suitable for swimming.

👉 Recommendation: If you prefer a slim and comfortable watch → DT Watch 11 Pro If you want a bold Ultra-style rugged watch → DT Ultra 4 Pro

🛍️ Buy DT WATCH 11 PRO here:
https://store.dtno1.com/products/dt-watch-11-pro

🛍️ Buy DT Ultra 4 Pro here:
https://store.dtno1.com/products/dt-ultra-4-pro

---

📱 Display Quality

Both smartwatches feature AMOLED displays with vibrant colors and good brightness.

• Same display quality (same manufacturer)
• Same brightness levels
• Good outdoor visibility

Interestingly, even though the Ultra 4 Pro is larger (49mm), the actual display size looks nearly identical to the 46mm model.

Conclusion: No real difference in display performance.

---

⚙️ UI, OS 26 Theme & Watch Faces

Both watches are running the latest OS 26 theme, bringing a refreshed UI and modern design.

• Liquid glass UI (widgets & control center)
• Updated icons & smoother layout
• New themed watch faces

A standout feature is that the widgets match your selected watch face style, giving a premium experience.

Always-On Display Note:

• DT Watch 11 Pro → Gets brighter after a few seconds
• DT Ultra 4 Pro → AOD may appear dim (varies by unit)

---

📲 Features & Smart Apps

Both watches support network sharing, allowing you to install apps directly.

• Same app support on both devices
• No built-in GPS (uses phone GPS)
• Smooth performance in daily tasks

Compared to some other models, app support is stable and works reliably.

---

💾 Storage & Media Features

Both devices come with 4GB of internal storage, which is a major advantage.

• Transfer files via PC (fast method)
• Store music, photos, and videos
• Supports AVI video format
• Voice recording supported

Limitation: No eBook support.

---

🔋 Battery Life Comparison

Battery performance is slightly better on the Ultra model.

• DT Watch 11 Pro → ~4% drain in test
• DT Ultra 4 Pro → ~2% drain in same test

Real Usage:

• Both last around 2–4 days with Always-On Display

Winner: DT Ultra 4 Pro (slightly better battery efficiency)

---

📊 DT Watch 11 Pro vs DT Ultra 4 Pro – Comparison Table

Feature	DT Watch 11 Pro	DT Ultra 4 Pro
Design	Series 11 Style (Slim)	Ultra Style (Rugged)
Size	46mm	49mm
Display Type	AMOLED	AMOLED
Display Quality	Same	Same
Brightness	Same	Same
Operating System	OS 26	OS 26
Watch Faces	Latest OS 26 Faces	Latest OS 26 Faces
Always-On Display	Improves after few seconds	May appear dim (unit dependent)
Storage	4GB	4GB
Media Support	Videos (AVI), Music, Photos	Videos (AVI), Music, Photos
Apps Support	Same Apps	Same Apps
GPS	Uses Phone GPS	Uses Phone GPS
Water Resistance	Light Waterproof	Light Waterproof
Battery Life	2–4 Days	2–4 Days (Better Efficiency)
Best For	Small wrists, sleek look	Sporty users, rugged style

✅ Key Similarities

• Same AMOLED display quality
• Same OS 26 interface & features
• 4GB storage on both
• Same app support
• Same battery range (2–4 days)

⚖️ Key Differences

• 46mm vs 49mm size
• Slim vs rugged design
• Ultra 4 Pro has slightly better battery performance
• Always-On Display behaviour differs

---

🏆 Final Verdict – Which One Should You Buy?

Both watches offer excellent value, but your choice depends on your preference:

• Choose DT Watch 11 Pro if:
  • You have a smaller wrist
  • You prefer a slim and lightweight design
  • You like the classic Apple Watch Series look
• Choose DT Ultra 4 Pro if:
  • You want a rugged, sporty design
  • You prefer a bigger watch (49mm)
  • You want slightly better battery life

Final Recommendation: 👉 For most users → DT Watch 11 Pro 👉 For sporty/rugged lovers → DT Ultra 4 Pro

---

💬 Your Opinion?

Which one would you choose – Ultra or Series design? Let me know in the comments!

---

📌 Don’t forget to check full reviews on the channel and use the links above to support!