Acrobat failed to load its Core DLL--can't open pdf files as a result

Please See the solution on below link : http://helpx.adobe.com/acrobat/kb/reader-core-dll-error.html

I had the exact problem in opening my Adobe Reader except its version XI.  Keep getting the error message failed to load core dll. I have a Windows 7 OS, 64 bit with IE 10.  I did download on protected mode but don't know why that would make a difference... I hope it doesn't interfere with my antivirus software- Norton 360- yea I spent good money for this because of a trojan virus that was so bad I had to use system restore.  Can someone help me out with this problem?

Hi Folks,

We've had problem – we have not been able open PDF files with Acrobat reader.  This initially was a major issue because I have so many PDF files. 

Here is the error message:

Incompatible with system configuration.  Do you want to open with protected mode disabled?

When I try to open with protected mode disabled I get:

Fatal Error:  Acrobat failed to load its Core DLL.

After uninstalling and reinstalling with no help, I realized I could open the files with Microsoft’s file viewer – so it wasn’t as crucial to solve the problem ASAP.

So we spent time following up on a potential BOT infection.  Comcast had sent us an EMail saying that they thought that one or more of our computers had a BOT.  The only symptoms we had was that my lap top crashed a couple of times in the past week; and we lost the ability to read PDF files.  The Email gave a choice – either follow instructions to get rid of the malware yourself or seek specialized help from Comcast to get rid of the problem (for $129).  So I did the do-it-yourself version and did not find the BOT.  After several calls to Comcast and at least an hour we were connected with someone from their Tech Support who knew what he was doing.

He gave us a file that took one minute to download and another minute to do the scan.  It found the BOT and removed it.  AND once I rebooted my laptop the PDF problem went away. 

So in case you have had strange computer problems, here is the file location

http://download.cnet.com/Kaspersky-TDSSKiller/3000-2239_4-12684178.html

Don’t click on the 3-step running banner that says “start download”

but click on green button on the left that says “Download Now (CNET Secure Download).”

If you have problems, hopefully this will solve it.

Thanks

I have Windows 7 and Adobe Reader X1, this error message never came up until yesterday. Please help!!! I have to open PDF files for my business... I have already tried options listed here as well as uninstalling/reinstalling

I windows 7 and had Adobe 11 downgraded to 10 thinking that might help no. I have changed the program like all have reccomended to no avail has it worked. I have restored my computer to a date when Adobe worked just fine. I  need my reader for school as my textbooks are PDF's. I am in freak out mode and no clue what to do about it. IF all these ideas are not working.

Keeping the thread alive here. I just had the same problem today on a Win XP machine after installing some adobe updates. My current version of Acrobat is 9.5.1 and my Adobe reader is 10.1.3. There were no issues with the reader, just the error message when trying to open Acrobat. I follow the advice of some of the previous posters and did a repair in "Add/Remove Programs". It took close to 10 minutes to finish repairing and required a reboot. After that everything worked perfectly again.

I'm late to the party, but have FINALLY solved this issue.  I'm running Windows Vista on an old desktop I normally only use for printing.  Unable to print .pdf files with this same issues.

Uninstall the latest (lousy) version of Adobe and installed version 9.5.0. 

FIXED.

Abode should have addressed this issue long ago.

All you should have to do is install the latest version of Adobe Acrobat Reader.  Once installed, change the default program to launch when a PDF is opened to the latest one that you installed.  easiest way to do that. right click on a program, go to Open With..., then Choose Default.  a new dialogue box will open, and you can choose which PDF program you want to open with... make sure you choose the latest version.

What i noticed in my scenario was that i could open PDF files, but only after opening adobe reader x, and going to file--> open--> selecting my PDF.

but when i had items saved elsewhere i wasnt able to open them like say from the desktop or my documents.  gave me that 'Acrobat failed to load it Core DLL' error.  not fun.

I had the same problem but I just discovered that it only gives me that message and won't open PDF files in Firefox. I can open them and it works fine with Google Chrome. Hope this helps. I tried the repair option and that did  not work. It must be an issue with Firefox.

I cannot open the program.   Adobe failed to load its Core DLL.  Wondering if it has a compatibility problem with Bit Defender 2011 which I recently installed?   So where is the answer from Adobe's techincal support staff?