anotherdarkknight :
kanewolf :
"Framework 3.0" is not enough of a description to even start debugging. Do you mean Microsoft .NET Framework? Is this a purchased product? Can you get new install media from the vendor?
Yes, for the Microsoft .NET Framework. Like i want to install Sony Vegas and it needs Microsoft .NET Framework 3.0, i had 4 and 2 but i deleted them and now i am so confused what i have to do
You might want to read the
Microsoft article on compatibility between .NET versions. You may be able to use the 4.5 .NET version.
Here is the compatibility between OS versions for the different versions of .NET.