Acrosup64.dll Is Not Marked For Installation File
Level 1: Basic Repair (Success Rate: Low) Running the standard "Repair" utility from the Control Panel often fails because the installer hits the same logic error. However, it is the recommended first step.
Level 2: Adobe Cleanup Tool (Success Rate: High) Adobe provides a specific tool designed to resolve this exact registry state conflict.
Level 3: Microsoft Program Install and Uninstall Troubleshooter (Success Rate: Medium)
Level 4: Manual Registry Edit (Advanced)
The "acrosup64.dll is not marked for installation" error can often be resolved by reinstalling the relevant application, manually registering the DLL, or using built-in Windows tools like SFC and clean boot. If the issue persists, consider seeking help from a professional or the support team of the application you're trying to use.
How to Fix "acrosup64.dll is not marked for installation" (Error 2753)
If you are trying to install, update, or uninstall Adobe Acrobat or Adobe Reader, you might encounter this error message:
"Error 2753. The file 'acrosup64.dll' is not marked for installation."
This installation error stops the process immediately, leaving your PDF software corrupted or unusable. It typically happens because of orphaned files from previous installations, corrupted setup files, or mismatched registry keys. What Causes Error 2753?
Residual Installation Files: Previous Adobe Acrobat or Reader installations left behind folders and temporary files.
Corrupted Windows Installer Cache: The Windows Installer engine holds cached MSI data that clashes with the new software.
Registry Key Conflicts: Corrupted or outdated registry keys point to DLL files that no longer exist or cannot be overwritten.
Damaged AppData Folders: Temporary or local configuration files prevent the updater from executing properly. 4 Methods to Resolve the Error 1. Use the Official Adobe Acrobat Cleaner Tool
The most effective way to solve this issue is to completely remove all traces of Adobe products from your system before trying a clean installation.
Download the official tool from the Adobe Reader and Acrobat Cleaner Tool.
Run the executable and follow the prompts to remove both Acrobat and Reader. Restart your computer. acrosup64.dll is not marked for installation
Download the full standalone offline installer from the Adobe Acrobat Reader DC Distribution page. Run the new installer. 2. Manually Delete Adobe Folders
Sometimes the uninstaller does not remove all files. Residual folders under your user profile can trigger Error 2753. Press Windows Key + R to open the Run dialog box. Type C:\Program Files (x86) and press Enter.
Locate the Adobe folder. If it exists, right-click and delete it.
Open the Run dialog box again, type %localappdata%, and press Enter. Delete the Adobe folder found inside the Local directory.
Open Run again, type %appdata%, and delete the Adobe folder inside the Roaming directory. Empty your Recycle Bin and restart your PC.
3. Clear Windows Installer Registry Entries via Revo Uninstaller
If the native Windows uninstaller continues to fail with the acrosup64.dll error, use a third-party uninstaller to force-remove the program and wipe leftover registry entries. Download the free version of Revo Uninstaller.
Open Revo Uninstaller and select Adobe Acrobat or Adobe Reader from the list. Click Uninstall.
If it fails with the same error, use the Advanced Scan option inside Revo to scan for leftover registry keys and files.
Select all the detected registry keys, click Delete, and then delete the detected residual files. Restart your computer and perform a fresh installation. 4. Extract and Run the Installation Files Manually
If the standard installation package crashes, you can manually extract the Microsoft Installer (.msi) file using an extraction utility like 7-Zip. Download the offline Adobe executable installer (.exe).
Right-click the .exe file and extract its contents using 7-Zip into a new folder. Open the extracted folder and find the AcroRead.msi file. Right-click AcroRead.msi and select Install.
Once complete, run the update file (.msp) inside the same folder to update the software to the latest build. Summary Troubleshooting Checklist Action Item Why it helps Adobe Cleaner Tool Safely removes corrupt installation profiles. Delete AppData Folders Cleans out bad cached files preventing the update. Third-Party Uninstaller Removes orphaned registry entries. Manual Extraction Bypasses faulty bootstrapper installers.
Did these steps resolve the installation error, or are you deploying Adobe Acrobat via GPO or SCCM across a network? error the file acrosup64.dll is not marked for installation
The error message "Error 2753: The File 'acrosup64.dll' is not marked for installation" typically occurs when installing or updating Adobe Acrobat Adobe Reader Level 1: Basic Repair (Success Rate: Low) Running
. It indicates that the Windows Installer has encountered a conflict with a specific DLL file, often due to corrupted registry keys or leftover files from a previous installation. Recommended Fixes 1. Use the Adobe Acrobat Cleaner Tool
This is the most common and effective solution. It removes all traces of previous installations that might be causing the "not marked for installation" conflict. Download the official Acrobat Cleaner Tool
Run the tool and select the product version you are trying to fix.
Restart your computer and try installing the application again using an offline installer 2. Manually Clear AppData Folders
If the cleaner tool doesn't work, manual removal of cached files may be necessary: Uninstall Adobe via the Control Panel Navigate to C:\Users\%username%\AppData In each of the folders, find and delete the Restart your PC before re-attempting the installation. 3. Advanced Registry Cleanup (For Experienced Users)
If you are comfortable with the Windows Registry, you can search for and delete specific product keys that are stuck. and navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\ Look for keys starting with
(common for Adobe products) or any folder that mentions "Adobe" or "Acrobat" inside its registry values.
Back up your registry before deleting anything, as mistakes can cause system instability. 4. Repair Visual C++ Redistributables
Sometimes, missing or corrupted dependencies cause DLL errors. Adobe Help Center Control Panel > Programs and Features Microsoft Visual C++ Redistributable (specifically versions from 2013 onwards). Select each one and click Adobe Help Center Summary of Causes error the file acrosup64.dll is not marked for installation 4 Jan 2015 —
How to Fix the "acrosup64.dll is not marked for installation" Error
If you are trying to install or update Adobe Acrobat or Reader and hit the error message "File 'acrosup64.dll' is not marked for installation," you aren't alone. This is a common Windows Installer (MSI) glitch that usually pops up when there’s a conflict between an existing installation and a new update.
Here is a straightforward guide to getting your software back up and running. What Causes This Error?
The error typically occurs because the Windows Installer service thinks the acrosup64.dll file (a core component for 64-bit Adobe support) already exists in a state that shouldn't be overwritten, or the registry keys from a previous version are "ghosting" the new install. Step 1: Use the Adobe Acrobat Cleaner Tool
The most effective way to fix this is to completely wipe the slate clean. Standard uninstalls often leave behind the very registry keys causing the conflict.
Download the Adobe Acrobat Cleaner Tool from the official Adobe website. Run the tool and select your product (Acrobat or Reader). Click Cleanup Now. Level 4: Manual Registry Edit (Advanced) The "acrosup64
Restart your computer. This step is vital to clear the system cache. Try a fresh installation of the software. Step 2: Manually Rename the Adobe Folders
If the cleaner tool doesn't work, manual intervention might be needed to "hide" old files from the installer.
Close all Adobe processes via Task Manager (Ctrl+Shift+Esc). Navigate to: C:\Program Files\Adobe
If you see a folder named Acrobat, rename it to Acrobat_Old.
Navigate to: C:\Program Files (x86)\Common Files\Adobe and do the same for any relevant folders. Attempt the installation again.
Step 3: Run the Program Install and Uninstall Troubleshooter
Microsoft provides a specific tool for when programs won't install due to corrupted registry keys.
Download the Microsoft Program Install and Uninstall Troubleshooter. Run it and select Installing.
Look for Acrobat or Reader in the list. If it’s not there, select "Not Listed."
Let the tool repair the registry patches and try your installation once more. Step 4: Check for Windows Updates
Sometimes the Windows Installer service itself is out of date, leading to "not marked for installation" errors across various software. Go to Settings > Update & Security > Windows Update. Click Check for updates. Install any pending updates and restart. Final Pro-Tip: The "Direct Download" Method
If you are getting this error while using the Adobe Creative Cloud desktop app, try downloading the standalone offline installer from the Adobe website instead. These installers are often more "forceful" and can bypass the minor MSI conflicts that trigger the acrosup64.dll error.
The error message "acrosup64.dll is not marked for installation" is a common Windows Installer (MSI) failure typically associated with Adobe Acrobat or Adobe Reader. This error suggests a state mismatch between the Windows Registry and the actual file system, where the installer believes a patch or component is already present or improperly configured, preventing the installation, update, or uninstallation from proceeding.
You will likely see this error in the following situations:
Once you resolve "acrosup64.dll is not marked for installation," follow these best practices to avoid recurrence: