Unable to write to registry key for Acrobat XI - error 1406

Question

Hi all,
I have a problem regarding the installation of Adobe Acrobat XI 11.0.07 on an ASUS laptop with Windows 7 Home Premium OS.
In short, I am unable to complete the installation of Adobe Acrobat XI on this machine because Acrobat is not able to write the value to the registry key situated here:
     HKEY_LOCAL_MACHINE --> SOFTWARE --> Microsoft --> Internet Explorer --> Toolbar.
I tried to find solutions on the internet, and have found one webpage at the Adobe Forums, which is this one: Error 1406.Could not write value Adobe ARM - and it was not very helpful, since the person asking solved his problem, but did not tell how he did. So, I found this page at Acrobat Help, called Error 1402 | Error 1406 | Acrobat, Reader where I tried the different solutions, but so far none of these have worked. What I did was to remove all previous versions of Adobe Acrobat, Reader, Air and so on. In fact, I deleted all software from Adobe in case one of these softwares were to blame, but it has not worked. But before I deleted all this software, I deleted Acrobat and Reader several times, but as you probably already have found out, it did not work. As this did not work, I tried the next solution at Acrobat Help, which was to "Set permissions to their defaults in the registry". I followed the solution completely and did everything it said, but it has not worked. As a note, I have to say that the registry key type I have problems with is called "Locked", the type is REG_DWORD and the data value is (0). Does this have anything to do with it? I am not too familiar with editing the registry. Though, I did try to change the value to (1) and updating the registry, but it did not work...
More information: nevertheless if I install the complete version of Adobe Acrobat XI or the typical installation, the same error comes up: error 1406. And I did scan my system with my antivirus software, called Bullguard, to see if there were any viruses; there were none. I also closed my antivirus software and diabled the firewall of Bullguard, but that was not succesful either, and I did a scan of my system using cmd as an administrator (sfc /scannow), and the program found some errors it could not fix. As far as I can see, it found three .dll files with errors. I have the document called sfcdetails.txt if that would be any helpful to you.
Besides that, I am not sure what to do. I did pay for Adobe Acrobat the 23rd of January, 2015, and I have not managed to make it work properly yet, and I cannot update the software, since I have this problem with the registry. I am able to use the software for what I had to use it for until now, but I would like to be able to use it for everything it stands for and update it to prevent any lapse in security.
Thank you. I hope you have any ideas for my problem and will be able to help me!
Best regards,
Mads

Answer 1

Hi Rahul,
Thank you for your answer. Though, it did not solve my problem! I did what you said: I tried using the Adobe Acrobat cleaner tool, and afterwards, I restarted my computer. After this, I downloaded the program from your link and I tried to install the program, but I did not succeed, because the same error came up, which is this:
     Error 1406. Could not write value {47833539-D0C5-4125-9FA8-0819E2EAAC93} to key \SOFTWARE\Microsoft\Internet Explorer\Toolbar.
With this error, the only options are to abort, retry or ignore the install, but none of these solves the issue, I am afraid.
But what I think it is all about is how to gain access to the registry. I followed the tutorial, I mentioned above, but I were not able to solve it... I gained administrator access to the registry, I made the current administrator account the owner of the key (the current administrator is not the original administrator of the computer, since I changed this long time ago), and I made the permissions correctly, I guess. I followed the tutorial, anyhow. Though, what confuses me, is that when pressing the button, called "Advanced", and entering the menu called "Advanced security settings for Toolbar" (I have the Danish version of Windows, excuse me if I did not translate it correctly), I see many persmission posts, two of which have the name of the current administrator account. One of these have full control, the persmissions from this are not inherited and they are used on "this key and underkeys". The second only has a special permission, it is inherited from "MACHINE\SOFTWARE\..." and it is used only on this key. How to change this, I am not sure. But I do not suspect that there should be two permissions for the same administrator account? Do you know if this is right?
Thank you.
Best regards,
Mads