The error "acrosup64.dll is not marked for installation" (often accompanied by Error 2753) typically occurs during an Adobe Acrobat or Reader update or installation. It indicates that the Windows Installer cannot find or properly register a specific file required for the 64-bit version of the software. 🛠️ Primary Fixes 1. Run the Adobe Acrobat Cleaner Tool
In simpler terms: The installer has found a reference to the DLL but cannot reconcile it with the intended installation state. This usually happens due to: acrosup64.dll is not marked for installation
Go up one level and check the Local and LocalLow folders; delete any Adobe folders there as well. 2. Registry Cleanup (Advanced) Press Win + R, type regedit, and hit Enter. Back up your registry first (File > Export). The error " acrosup64
Select "Reader" or "Acrobat" (whichever you're trying to fix) and let it remove all registry keys and temp files. Manually Delete AppData Folders: Uninstall Adobe Acrobat completely
Check Version: Ensure you aren't trying to install a 32-bit update over a 64-bit base version (or vice versa). Error 1723 - Problem with Windows Installer Package
acrosup64.dll is often loaded by the print spooler or a system tray app.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserDataCtrl + F and search for acrosup64.dll.Press Win + R, type regedit. Backup your registry first (File → Export).
The error "acrosup64.dll is not marked for installation" (often accompanied by Error 2753) typically occurs during an Adobe Acrobat or Reader update or installation. It indicates that the Windows Installer cannot find or properly register a specific file required for the 64-bit version of the software. 🛠️ Primary Fixes 1. Run the Adobe Acrobat Cleaner Tool
In simpler terms: The installer has found a reference to the DLL but cannot reconcile it with the intended installation state. This usually happens due to:
Go up one level and check the Local and LocalLow folders; delete any Adobe folders there as well. 2. Registry Cleanup (Advanced) Press Win + R, type regedit, and hit Enter. Back up your registry first (File > Export).
Select "Reader" or "Acrobat" (whichever you're trying to fix) and let it remove all registry keys and temp files. Manually Delete AppData Folders:
Check Version: Ensure you aren't trying to install a 32-bit update over a 64-bit base version (or vice versa). Error 1723 - Problem with Windows Installer Package
acrosup64.dll is often loaded by the print spooler or a system tray app.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserDataCtrl + F and search for acrosup64.dll.Press Win + R, type regedit. Backup your registry first (File → Export).