Software⏱️ 4 min read📅 2026-06-15

How to Fix: Getting a “not currently available” error when attempting to install Windows 10 on BootCamp on a MacBook Air 2020 running macOS Catalina

Windows installation error on MacBook Air 2020 with macOS Catalina

Quick Answer: Try updating the Boot Camp Assistant and ensure your internet connection is stable, then retry the Windows 10 installation process.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🛠️ Step-by-Step Verified Fixes
  3. 🎯 Final Words

The 'not currently available' error when attempting to install Windows 10 on BootCamp on a MacBook Air 2020 running macOS Catalina is frustrating and affects users who want to dual-boot their operating systems. This issue has been reported by multiple users, including yourself, which can be disheartening due to the time-consuming nature of troubleshooting and resolving it.

In this guide, we will walk you through the possible root causes of this error and provide step-by-step instructions for resolving the issue using two primary fix methods.

🛑 Root Causes of the Error

  • The primary reason for this error is that the Windows 10 installation package may be corrupted or incomplete. When you download the ISO file from Microsoft's website, it might not be in a valid format or contain missing files required for installation. This can lead to the 'not currently available' error when attempting to install Windows 10 on your MacBook Air.
  • Another possible reason is that your internet connection speed might be too slow to download the required files needed for Windows 10 installation. Although you have a fast 50mbps fiber internet connection, it's still possible that the download process takes longer than expected due to various network issues or server congestion.

🛠️ Step-by-Step Verified Fixes

Resetting the BootCamp Assistant

  1. Step 1: Open the Disk Utility app on your MacBook Air and select the Boot Camp partition (usually named 'Windows'). Click the 'Erase' button to delete any existing data on the partition.
  2. Step 2: Restart your MacBook Air and immediately hold down the 'Option' key while booting up. This will bring up the BootCamp Assistant menu. Select 'Restore from a Backup' or 'Install Windows' depending on your preference.
  3. Step 3: Follow the on-screen instructions to complete the installation process.

Updating the BootCamp Software

  1. Step 1: Open the Apple Menu and select 'About This Mac.' Click on 'System Report' and then scroll down to find the 'Boot Camp' section. Update the BootCamp software by clicking on the 'Update' button next to it.
  2. Step 2: Restart your MacBook Air and immediately hold down the 'Option' key while booting up. This will bring up the BootCamp Assistant menu. Select 'Install Windows' or 'Restore from a Backup' depending on your preference.
  3. Step 3: Follow the on-screen instructions to complete the installation process.

🎯 Final Words

To resolve the 'not currently available' error when installing Windows 10 on BootCamp on your MacBook Air 2020 running macOS Catalina, try resetting the BootCamp Assistant or updating the BootCamp software. If you're still experiencing issues, consider reaching out to Apple support for further assistance.

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