I have found the solution for this issue basically do the following steps:
First Solution::
- Run -> %appdata% (This takes you to "C:\Users\\AppData\Roaming")
- Look for PowerGUI profile folder ("Quest Software"). and Rename it to something like "Quest Software_old"
- Now go to add remove programs and select Uninstall/Modify for "Quest PowerGUI" program.
- Select the option Repair in Wizard and run it.
Second Solution: (This Works if you have used powerGUI script editor because at that time it saves your configuration's backup)
- Run -> %appdata% (This takes you to "C:\Users\\AppData\Roaming")
- Go into folder "C:\Users\\AppData\Roaming\Quest Software\PowerGUI"
- Rename "Config.xml" to "Config.xml_corrupted"
- Rename "Config.xml.back" to "Config.xml"
- Relaunch powergui.
references: http://www.powergui.org/thread.jspa?threadID=5885
The solution is for Windows 8 Operating system while it might work on other windows operating systems too.
Just thought this might light up someone's day. Have a good day ahead.