Computer Software Files Damaged or Corrupted.

Virus or Trojan infections on Your computer.

Windows System Files are missing.

System Registry Files are missing or corrupted.

If you are familar with computer skills, please do as the below steps to eliminate Doubleclick Spyware error.
1. Check that if you have updated your windows in time.
At times, people like to ignore microsoft's update remind messages. This may cause the critial disaster for your PC. 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 program which you have just installed.
Notice: Before you try to install a new program on your PC, please ensure that you download the software 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, once you have no idea of how to fix Doubleclick Spyware error, you can perform a sfc for your computer. This procedure will help you fix most dll error. SFC is a utility in Windows which can scan the corrupted windows files and restore it. Do not ignore the influence of bad system files, it may lead the unstable of your computer.

Following the below steps and fix corrupted files by yourself: (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. (It indicates that you don't have corrupted windows 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.  (In this situation, you had better do a system restore.)

See more details:http://support.microsoft.com/kb/929833/en-us

SmartPCFixer is an amazing tool for people to speed up PC. The point is, this software 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.

Speed up PC: Specialized in fixing blue screen error, troubleshooting access violations issue and troubleshooting application not responding problem, SmartPCFixer will always offers users the totally new experience. Just install it and give it a shot.

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.