i can't open all program. Regedit Registry and other file-file. when i click for example regedit error message out. this error message when i want open programs. "THIS FILE DOES NOT HAVE A PROGRAM ASSOCIATED WITH IT FOR PERFORMING THIS ACTION. PLEASE INSTALL A PROGRAM OR, IF ONE IS ALREADY INSTALLED, CREATE AN ASSOCIATION IN THE DEFAULT PROGRAMS CONTROL PANEL." please help me... tq.

Hej Maria, I have came across the similar problems before on my computer and what I can suggest you for the first step is actually try to scan your computer against virus, using some decent antivirus software. From what I have seen is that some viruses affect the registry entry related to the file association for exe files so you may have to remove the virus first. Then you should try to fix your registry by using this file (http://www.winhelponline.com/exefix_xp.com), it has .com extension. Post back the result please.

Hey, i try your suggestion but not working.. Because all file .exe can't run and process. I want to tell... i install some software and uninstall back, then when i restart all program and application can't use. this error message when i want open application. "THIS FILE DOES NOT HAVE A PROGRAM ASSOCIATED WITH IT FOR PERFORMING THIS ACTION. PLEASE INSTALL A PROGRAM OR, IF ONE IS ALREADY INSTALLED, CREATE AN ASSOCIATION IN THE DEFAULT PROGRAMS CONTROL PANEL."

Hej, Can you please confirm that you have windows 7 OS? I would assume this from first place since this is Win7 forum, but I guess it is better that you confirm it before I provide you further assistance.

Hey, Yup confirm... My window 7...

In this case, it turns out to be a corrupted .exe association. Can you try to run command prompt (CMD) with administrative privilege elevation and run command assoc.exe=exefile In case you get access denial and/or other errors, I suggest you to consult http://www.raymond.cc/blog/archives/2009/11/07/fix-this-file-does-not-have-a-program-associated-with-it-for-performing-this-action-in-vista-and-7/ for further steps. Post back for updates :)

Hey, Thank you, tq tq so much.... I follow you suggestion,then it's come back normal.... So awesome... Thank you very much.