How to Fix Adobe Acrobat Update Blocked by Another Operation
Question details
Users are unable to complete the Adobe Acrobat update because the desktop updater stalls, reporting that another operation is still running or waiting to complete.
- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Attempting to update the Adobe Acrobat desktop application.
- Observed behavior
- The update fails to proceed, and an error message appears stating that the program manager must be closed or that an existing operation is still running.
Ensure you have saved all your open PDF documents and closed any active Adobe applications or web browser PDF plugins before attempting to fix the updater.
Restart Your Computer to Clear Stalled Processes
A system restart is the most effective way to terminate background installation processes that are stuck and blocking the update.
Often, the Windows Installer (msiexec.exe) or Adobe's own background updater gets stuck in a loop. Restarting your machine forces these background tasks to close.
Save any open documents and close all running applications, especially Adobe Acrobat and Adobe Reader.
Click the Windows Start button, select the Power icon, and choose Restart.
Once the computer reboots, launch Adobe Acrobat, go to 'Help' in the top menu bar, and select 'Check for Updates' to try again.
Manually Install the Acrobat Update Patch
If the automatic desktop updater continues to fail, manually downloading and running the update patch bypasses the stalled application updater.
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Frequently Asked Questions
Why does Acrobat say an update is already in progress?
This error occurs when a previous software installation or update attempt failed to terminate properly. The operating system detects lingering background processes (like the Windows Installer or AdobeARM.exe) and prevents new updates from running simultaneously to avoid file corruption.
Can I force close the stalled updater without restarting?
Yes, you can use the Windows Task Manager. Press Ctrl + Shift + Esc to open the Task Manager, look for processes named 'Windows Installer' (msiexec.exe) or 'Adobe Acrobat Update Service', right-click them, and select 'End task'. Afterward, try running the update again.
Where can I find my current Adobe Acrobat version to download the right patch?
Open Adobe Acrobat, click on the 'Help' menu at the top, and select 'About Adobe Acrobat'. A dialog box will appear displaying your current version number and release track, which you can use to identify the correct patch on Adobe's download page.
