How do I restore Windows 11 Voice Packs without resorting to the ISO method?

Hi Peter Fraser,

Thank you for reaching out to Microsoft Q&A and I’m really sorry to hear about the issue with your missing voice packs. I understand how disruptive this can be, especially when you're relying on Word’s Read Aloud feature for productivity.

It sounds like the Registry Defrag tool may have removed or corrupted the voice pack entries, which is why they’re showing as 0 MB and only robotic voices remain. Fortunately, there are several ways to restore just the voice packs without needing to reinstall Windows via the ISO method.

Below are step-by-step instructions you can try:

1.Re-register Voice Components via PowerShell

Open PowerShell as Administrator.

Run the following command:

Get-AppxPackage -AllUsers -Name TextToSpeech | Foreach {
Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"
}

This will re-register any existing Text-to-Speech components for all users.

2. Reinstall Specific Voice Packs

If you know which voice packs are missing (e.g., en-US, ja-JP), you can reinstall them:

Add-WindowsCapability -Online -Name "Speech.TTS.en-US"
Add-WindowsCapability -Online -Name "Speech.TTS.ja-JP"

To remove and re-add a voice pack:

Remove-WindowsCapability -Online -Name "Speech.TTS.en-US"
Add-WindowsCapability -Online -Name "Speech.TTS.en-US"

3. Repair System Files

Open Command Prompt as Administrator and run:

DISM /Online /Cleanup-Image /RestoreHealth
SFC /Scannow

These commands will scan and repair any corrupted system files that may be affecting voice pack functionality.

4. Restart the Text-to-Speech Service

1. Press Win + R, type services.msc, and hit Enter.
2. Locate Microsoft Text to Speech.
3. Right-click and choose Restart.

5. Check Registry for Voice Tokens

Navigate to:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech_OneCore\Voices\Tokens

If entries are missing, you may need to manually restore them or re-register the voice folders.

6. Reset Windows Update Components

Open Command Prompt as Administrator and run:

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren %systemroot%\softwaredistribution softwaredistribution.bak
ren %systemroot%\system32\catroot2 catroot2.bak
net start wuauserv
net start cryptSvc
net start bits
net start msiserver

Then run wsreset to clear the Windows Store cache.

If all else fails and you still want to avoid a full ISO restore, please consider an in-place repair using the Media Creation Tool. This method keeps your apps and files intact but refreshes system components.

*Disclaimer: Let’s try performing an in-place install or in-place upgrade which will refresh your Windows files and operating system without removing files or applications. That being said, we always recommend that if you have important data, you should back it up before making large system changes. If you want to back up your data first, please do so. Once you are done backing up, you can follow the steps in the following guides: 

How to run In-place upgrade in Windows 11 - Microsoft Q&A 

How to perform a Windows 11 In-place upgrade | Microsoft - YouTube 

Please let me know if you run into any issues while trying them. I’m here to support you every step of the way.

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