Complete Flyoobe Guide

How to Use Flyoobe To Upgrade to Windows 11?

There are basically two versions of this tool you can use to upgrade your system. One is the full package Flyoobe which includes extra customization features and is best for users who want more control. The other is Flyby11 which is a minimal version best for straight upgrades without any hassle.

How to Download and Install Flyoobe Full Package?

This is the ideal method because it gives you more customization options for your Windows 11.

Step 1: Prepare the System

Before starting, you need to back up all your important data like files, documents, photos, and anything that you don’t want to lose. You can use an external hard drive or cloud storage and make sure you have at least 10GB of free space on your hard drive and a stable internet connection.

Step 2: Download Flyoobe

Go to the official Site page of Flyoobe and Download the latest Flyoobe full package.

Step 3: Extract and Launch the Tool

Find the zip file in your downloads folder. Now right-click and choose Extract All, and open the extracted folder double click the Flyoobe.exe file. Windows will show a security warning, so you have to click More Info and then Run anyway.

Step 4: Check Compatibility

When Flyoobe opens, it will automatically check if your CPU supports the needed instructions like POPCNT and SSE 4.2. If it passes, you are good to go but if it fails then it means your CPU is too old and nothing can be done and you have to buy a new one.

Step 5: Get Windows 11 Installation Files

Download the Windows 11 Media Creation Tool from Microsoft’s official website. Run and accept the terms.

On the language and edition screen, make sure “Use the recommended options for this PC” is checked. This matches the installation to your current setup so you keep your files and programs.

Select the option to save as an ISO file and save it to somewhere easy to find. Now wait for the download to complete and click Finish.

Step 6: Start the Upgrade

Drag and drop the Windows 11 ISO file directly into the Flyoobe window. The tool will mount the ISO and run the bypass automatically.

A Windows Setup window will appear, and it might say Install Windows Server but don’t worry it’s installing Windows 11.

Now you have to click the link that says Change how Setup downloads updates and select Not Right Now and click Next. Accept the license agreement.

Step 7: Choose What To Keep (Important Step)

Select Keep personal files and settings. This keeps everything on your computer as it is. If this option is greyed out or missing, stop. It means the ISO doesn’t match your system. You need to download the ISO again with the correct language and region settings.

Step 8: Install and Wait

Click Next and review the summary, then click Install. Your computer will restart many times so don’t interrupt the process. It can take 30 minutes or 2 hours, depending on your computer speed. After installation check Windows Update immediately for any new updates.

How to Download and Install Flyby11 Classic?

This is the faster method if you just want a simple upgrade without extra customization options.

Step 1: Download the Flyby11 Classic

Go to Official Website of Flyby11 and download Flyby11 Classic instead of the full package.

Step 2: Follow the Same Steps

Extract the zip file and run Flyby11.exe, and now follow the steps 3-8 mentioned above. The process is identical but with a simpler interface.

Step 3: Complete the Installation

Let the upgrade finish and restart as needed. Check for updates once you’re upgraded to Windows 11.

Going Back to Windows 10 After 10 Days

Windows 11 keeps a folder called Windows.old for 10 days after you update which lets you easily go back. But after 10 days, this folder gets deleted automatically to free up disk space.

Method 1: Within 10 Days (Built-in Rollback)

To check if you can still go back:

• Go to settings, press Windows + I

• Go to System and then Recovery

• Look for a Go Back option under Recovery options

• If you see it, you’re still within the 10 window

Do the rollback:

• Click Go Back

• Answer the survey questions about why you are going back to Windows 10
• Click Go back to Windows 10
• Your computer will restart and rollback
• This takes 10-30 minutes
• All your apps, files and settings will stay exactly as they were

Try to Prevent Automatic Windows.old Deletion (Unofficial)

There’s no official command to make the 10-day window longer, but you can prevent the automatic deletion:

• Open Settings then System then Storage

• Turn off Storage Sense

• This stops the automatic cleanup of Windows.old folder

Method 2: After 10 Days (Clean Install Required)

Step 1: Back up your Files

Option 1: Copy Files Manually

• Plug in an external hard drive or USB drive (500+ GB recommended)
• Copy these folders to your backup drive:
  • C:\Users\[YourName]\Documents
  • C:\Users\[YourName]\Pictures
  • C:\Users\[YourName]\Videos
  • C:\Users\[YourName]\Desktop
  • C:\Users\[YourName]\Downloads
  • C:\Users\[YourName]\AppData (this has app settings, might be hidden)

• Make a list of all your installed programs (check Programs and Features)
• Export your browser bookmarks and passwords
• Save your game saves in the Documents or App Data folders

Option 2: Use Windows Back Up

• Go to Settings then System then Storage and then Advanced Storage settings

• Click Backup options

• Add a backup drive and set up the backup
• Or use File History to back up to an external drive

Option 3: Create A System Image (Best)

• Search for the Control Panel and open it

• Click Backup and Restore (Windows 7)

• Click Create a System Image
• Choose your external drive as a backup destination

• This will create a complete backup, including programs and settings
• Takes 50-200 GB, depending on how much data you have
• This allows you to restore everything completely if needed

Step 2: Download Windows 10 ISO

Visit Microsoft Official Page

• Click Download Tool Now (Media Creation)
• Run the tool you downloaded
• Select Create Installation Media (USB Flash Drive, DVD, or ISO file)
• Choose these settings:
  • Language: Match your current system
  • Edition: Windows 10 (not 11)
  • Architecture: 64-bit
• Select ISO file

• Save it to your computer (4-5GB File)

Step 3: Create A Bootable USB Drive

• Plug in a USB drive 8+ GB and everything on it will be erased
• Download from Rufus

• Open Rufus
  • Device: Select your USB drive
  • Boot selection: Click Select and choose your Windows 10 ISO file
  • Partition scheme:
    • GPT (for UEFI) – for most modern computers
    • MBR (for Legacy BIOS) – for older computers
• Click Start
• Confirm to erase the USB drive
• Wait for 5-15 minutes

Step 4: Clean Install Windows 10

Boot from USB:

• Restart your computer

• Press the Boot menu key during startup: Common keys are F12, F11, F9, Esc, or F8, or enter BIOS (usually Del, F2, or F10) and change the boot order
• Select your USB drive from the boot menu
• Windows Setup will start

Installation Process:

• Select your language, time and keyboard settings and click Next
• Click Install Now
• Click: I don’t have a product key and Windows will activate later using the digital license tied to your hardware
• Choose your Windows 10 edition and match what you had before
• Accept the license terms
• Click: Custom: Install Windows only (Advanced)

Necessary Step – Choosing Partitions:

You will see your drives’ partitions listed:

• A (Fresh Start): Select each partition and click Delete until you have unallocated space
• B (Keep recovery partition): Delete only the main Windows partition and leave the small recovery partition alone
• Select the unallocated space
• Click Next
• Installation begins and takes 20-60 minutes
• Your computer will start several times automatically; this is normal

Step 5: After Installation

• Complete the initial Windows setup questions
• Connect to the internet
• Windows 10 will activate automatically by using the digital license tied to your hardware
• Now go to Settings then Update and Security then Windows Update
• Run Windows update completely, but you might need to restart multiple times
• Install Drivers (Windows Update usually takes care of it automatically)
• Reinstall all programs
• Restore your backup files from external drives

Method 3: Restore From System Image (If You Created One)

If you created a system image backup before or after upgrading to Windows 11:

• Boot from Windows 10 installation USB
• Click Repair your computer in the bottom left corner of the first screen
• Click Troubleshoot and then Advanced options
• Click System Image Recovery
• Connect the external drive that contains the backup image
• Windows will detect the backup image automatically
• Follow the prompts to restore
• Everything returns exactly as it was when the backup image was created
• This is the easiest recovery method if you planned ahead and made the backup