If you see a folder named , rename it to Acrobat_Old .
This error is often encountered during:
Microsoft provides a specific tool for when programs won't install due to corrupted registry keys. acrosup64.dll is not marked for installation
According to multiple Adobe Community users, Revo Uninstaller successfully removes Adobe Reader when the standard uninstaller fails:
When automated tools fail, it is usually due to orphaned keys hidden inside the Windows Installer component hive. If you see a folder named , rename it to Acrobat_Old
Click through the alphanumeric subfolders (keys) in this section. Look at the string on the right-hand panel.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Click through the alphanumeric subfolders (keys) in this
If acrosup64.dll is missing from your system entirely, you may see a variation of the error.
In this guide, we will break down , why it happens , and—most importantly— step-by-step solutions to permanently resolve it.
: Editing the registry can cause serious problems if done incorrectly.