. Open Command Prompt by typing command in RUN dialog box.
2. Now provide following command:
cd\windows
3. It"ll activate Windows folder. Now provide following command to open Registry Editor:
regedit
4. Now goto following key:
HKEY_CLASSES_ROOT\.exe
In right-side pane, change value of Default key to exefile
5. Now goto:
HKEY_CLASSES_ROOT\exefile\shell\open\command
In right-side pane, change value of Default key to:
"%1" %*
6. Thats it. Now exit Registry Editor and restart your Windows. Now you should be able to open EXE files without any problem.