Sidebar menu/tools Disappears in New Acrobat Experience

After following your directions to the second bullet point, I get an error pop up box with “Cannot create value: Error writing to the registry.” So now what?

This fix is not helpful at all.

Hello @HappySoSnappy

Thanks for your patience and cooperation on this.

Please try the following suggestions, and let us know if this fixes the issue for you.

Please note: Create a backup of the registry settings before making any changes. To create a backup, check this article: https://adobe.ly/4eiL6Bu

• Go to the registry location: "Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Adobe Acrobat\DC\FeatureLockDown"

• Right-click on the right blank space > select New > DWORD 32-bit value.

• Rename it to:  bGenCoverPagesLabelStrings

• Right click on the new value > Click Modify > add the value as ‘1’ (numeric one)

• Restart the Acrobat and the machine and check the performance.

Let us know if you experience any issues.

Regards,

Anand Sri.

Hello @HappySoSnappy,

I hope you are doing well, and thanks for reaching out. We're sorry for the trouble you had with the app.

We've reported this issue to the product team, which is seen on the latest build of Acrobat 26.001.21677. Planned update, Jun 17, 2026. A similar issue has been reported on other community threads. You can follow it for the latest information: https://adobe.ly/4xAo7Jt

We will update this thread once we hear anything from the product team. Thanks for your cooperation on this.

Regards,

Anand Sri.