Computer Software Files Damaged or Corrupted.

Virus or Trojan infections on Your windows.

Windows System Files are missing.

System Registry Files are missing or corrupted.

If you are a technical guy, please do as the below steps to remove Error Code 0x800706A6 issues.
1. Check that if you have updated your windows in time.
Sometimes, people like to ignore microsoft's update remind messages. This may cause the severe disaster for your computer. Please click Start, Control panel, System Security, windows update step by step. Then click check for update to see if you have missed the latest update.
2. Uninstall the recent installed software at once.
Attention: Before you try to install a new application on your PC, please make sure that you download the program from its official website. Because the 3rd party website always bring virus or trajon for your computer.
3. Perform SFC utiltiy for your computer.
General speaking, if you cannot fix Error Code 0x800706A6 issues, it is smart to run a sfc for your while system. This procedure will help you fix most dll error. SFC is a free utility that allows users to scan for corruptions in Windows system files and restore corrupted files. If a Windows Resource Protection (WRP) file is missing or is corrupted, Windows may not behave as expected. For example, some Windows functions may not work, or Windows may crash.

To do this, follow these steps: (Windows 7 or Windows Vista)

1. Click "Start" Button, and type CMD in the searching box. Right-click "CMD", then run as administrator.

2. At the command prompt, type the following command, and then press ENTER:
sfc /scannow

3. You may see the following message.

• Windows Resource Protection did not find any integrity violations. (This means that you do not have any missing or corrupted system files.)
• Windows Resource Protection could not perform the requested operation.
• Windows Resource Protection found corrupt files and successfully repaired them.
  
• Windows Resource Protection found corrupt files but was unable to fix some of them.  (To repair the corrupted files manually, view details of the System File Checker process to find the corrupted file, and then manually replace the corrupted file with a known good copy of the file.)

Reference:http://support.microsoft.com/kb/929833/en-us

SmartPCFixer is an excellent tool for people to speed up PC. The point is, this utility has several powerful functions which is especially designed for you to optimize PC.

Registry cleaner: Fix registry errors and deletes dead keys or values such as startup entries that a 3rd party application forgot to delete, which could lead to problems during startup. It also effectively remove invalid file type pointers and orphaned entries within the list of installed applications which may cause problems when installing or uninstalling applications.

Dll Fixer: Still be bothered by dll missing error? Luckily for you, with SmartPCFixer, you will never be annoyed by dll errors. SmartPCFixer has Dll Download function which is capable of downloading and registering missing dll files for you with simple clicks.

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If all the above steps still doesn't work, please try to do a system restore for your computer. SmartPCFixer is also able to perform a system restore for you.