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Are you unable to open Adobe Reader or Acrobat due to the pop up “Acrobat Failed to Load core DLL? If so, you may have a rootkit on your system preventing you from using Adobe products! But don’t worry, we have the solution to get you back up and running. Follow these 3 steps, and your Adobe will go back to working as it normally should.

Adobe DLL

Step 1: Repair Adobe Reader/Acrobat

  1. Go to Start -> Control Panel -> Programs and Features (Add/Remove Programs in XP)
  2. Select Adobe Reader/Acrobat and hit “Change”
  3. When given the option in the installer, select “repair” and then hit next.
  4. Let the installer complete, and then close all Windows.

Step 2: Remove the Rootkit using TDSSKiller

  1. Go to: TDSSKiller Download Page and download TDSSKiller. Save it to your Desktop or Downloads.
  2. Browse to the location you saved the exe, and rename it to “rkk” (for Root Kit Killer) or something else to ensure the rootkit doesn’t hide itself when it sees TDSSKiller is running.
  3. Run the program, and let it run its scan. When the scan completes, “Cure” the infection and reboot when prompted.
  4. You have removed the Root Kit.

Step 3: Reinstall Adobe

  1. Go to Start -> Control Panel -> Programs and Features (Add/Remove Programs in XP)
  2. Select Adobe Reader/Acrobat and hit “Uninstall”
  3. Proceed through the prompts to remove Adobe Reader/Acrobat
  4. Once it is removed, close all windows and browse to the Adobe Reader Download Page and download and install Reader. If you have Acrobat, insert your disk or re-download your program to reinstall it.
  5. You now have your Adobe Reader/Acrobat back on your computer.

There you have it, the fix for removing the Root Kit preventing you from accessing your Adobe Reader/Acrobat and the PDFs you are trying to use. If you employ this fix, you should be back to normal. I recommend running an Virus Scan with MalwareBytes or SuperantiSpyware after you complete the above steps, as well, to ensure your PC has no further infections.


Rutledge Daugette

Founder & CEO

Founder of TechRaptor with a love of video games (B.S. in Game Programming) and technology. Started TechRaptor to create a place where people could come for quality content.