.net framework initialization error

How to set hklm\software\microsoft\.NETFramework\InstallRoot to point to the .NET Framework installation location.

- Copy the text below - everything in the red window - to the clipboard:
 

Code:
REGEDIT4

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework]
"InstallRoot"="c:\\WINDOWS\\Microsoft.NET\\Framework\\"

- Open Notepad
- Paste the text into Notepad
- Save the file to C:\Reset.REG
- Open Windows Explorer
- In the left-hand pane, click the '+' next to 'My Computer'
- Select the C: drive
- In the right-hand pane, double-clcik the file Reset.REG
- Click 'Yes' to the 'Are you sure...' question, if it appears
- Click 'OK'

NB!
This assumes that your Windows installation is in the default location, C:\WINDOWS