Microsoft provides Windows Server Evaluation editions that allow organizations and IT administrators to test the operating system for 180 days before purchasing a license. However, once testing is complete, the server must be converted to a fully licensed edition such as Windows Server 2016 Standard or Datacenter.

Many administrators perform this conversion using the Deployment Image Servicing and Management (DISM) tool. During this process, it is common to observe the system appearing stuck at 10% progress, or displaying the screen “Getting Windows ready – Don’t turn off your computer.”

This article explains the complete process, expected behavior, troubleshooting methods, and best practices for converting Windows Server 2016 Evaluation Edition to Standard Edition.

Understanding Windows Server Evaluation Edition

The Windows Server 2016 Evaluation Edition is designed for testing purposes and includes the following characteristics:

• Valid for 180 days
• Cannot be activated directly using a product key
• Must be converted to Standard or Datacenter edition before activation
• Supports in-place edition upgrade using DISM

Once the evaluation period expires, the server may begin automatic shutdown every hour, making conversion necessary.

Checking Current Server Edition

Before performing the conversion, confirm that the server is running the Evaluation edition.

Run the following command in Command Prompt (Administrator):

DISM /online /Get-CurrentEdition

Example output:

Current Edition : ServerStandardEval

To check supported upgrade paths:

DISM /online /Get-TargetEditions

Output typically shows:

ServerStandard
ServerDatacenter

Command to Convert Evaluation to Standard Edition

Use the following DISM command to convert the server:

DISM /online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula

Example:

DISM /online /Set-Edition:ServerStandard /ProductKey:BNB6J-2QTPP-B362J-DY3GM-KFBVM /AcceptEula

Where:

• /online targets the running operating system
• /Set-Edition changes the Windows edition
• /ProductKey installs the Standard license key
• /AcceptEula accepts Microsoft's license agreement automatically

What Happens During the Conversion Process

Once the command is executed, Windows performs several internal servicing operations.

Step 1: Installing Product Key

DISM installs the product key and prepares the edition upgrade.

Step 2: Removing Evaluation Package

The system removes the package:

Microsoft-Windows-ServerStandardEvalEdition

This is where the progress bar often remains at 10% for a long time.

Step 3: Component Servicing

Windows rebuilds the component store (WinSxS) and installs Standard edition components.

Step 4: System Reconfiguration

Licensing components and registry configurations are updated.

Step 5: Reboot Required

The system reboots automatically and shows the message:

“Getting Windows ready – Don’t turn off your computer.”

Why DISM Appears Stuck at 10%

Many administrators believe the system is frozen, but this is normal behavior.

Common reasons:

• Removal of large component packages
• Windows component store restructuring
• Disk I/O operations
• Pending Windows updates integration
• Slow storage devices (especially HDD)

Typical timeline:

The 10% stage can last 15–45 minutes.

“Getting Windows Ready” Screen Explanation

After the DISM command completes, Windows reboots and displays:

Getting Windows ready
Don’t turn off your computer

This stage performs:

• Final component servicing
• Registry configuration updates
• Feature enablement
• License activation preparation

Depending on server performance, this stage may take 10–30 minutes.

Important Precautions During Conversion

During the upgrade process, administrators should follow these precautions:

Do Not Interrupt the Process

Avoid:

• Powering off the server
• Restarting the system
• Closing the command window

Interrupting the process can lead to:

• Windows component corruption
• Boot failures
• Licensing errors

How to Verify DISM Activity

If the process appears slow, administrators can confirm activity.

Check Running Processes

tasklist | findstr dism

Monitor DISM Logs

C:\Windows\Logs\DISM\dism.log

Monitor Resource Usage

Open Task Manager and check:

• CPU usage
• Disk activity

If disk activity is visible, the process is still working.

Troubleshooting Long Conversion Time

If the process takes more than 60–90 minutes, investigate the following factors.

Disk Performance

Servers running on HDD storage may experience slower servicing operations.

Pending Windows Updates

Install pending updates before running DISM.

Insufficient Disk Space

Ensure at least 10–15 GB free space on the system drive.

Antivirus Interference

Some antivirus software can slow servicing operations.

Post-Conversion Verification

After reboot, confirm the new edition.

Run:

winver

Or:

DISM /online /Get-CurrentEdition

Expected output:

Current Edition : ServerStandard

Activating Windows Server

After conversion, activate the server:

slmgr /ato

To check activation status:

slmgr /dlv

Best Practices for Server Edition Conversion

• Always perform a full backup before conversion
• Schedule the upgrade during maintenance hours
• Ensure stable power supply
• Disable unnecessary background applications
• Verify product key validity

Conclusion

Converting Windows Server 2016 Evaluation Edition to Standard Edition using DISM is a safe and supported method provided by Microsoft. Although the progress bar may appear stuck at 10%, this behavior is typically normal during package removal and component servicing.

Administrators should allow the process to complete without interruption. Once finished, the server will run the fully licensed Windows Server 2016 Standard Edition, ready for activation and production use.

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