Go no less than 1gb for vista.
Windows Vista can already run most XP applications, with no need for any additional software.
They are "compatible" in the sense that many applications that run on Windows XP will run on Windows Vista.
There is no applications folder in Vista. However, you can find a folder called 'program files' in your windows partition. In program files, you can find your applications.
Many applications and games written for or compatible with Windows 98 will run on Windows Vista.
your computer might not be powerful enough to run vista. but to be honest i hate vista, get windows 7. Are there any applications running?
Windows Vista DVD.
Yes ofcourse, Windows Vista is upgraded version of Windows XP. Obviously it can run Windows XP applications.
Windows memory diagnostics. To run it type memory into the start menu and press enter, or click windows memory diagnostics.
No No No. Use Mac.
20-40GB depending on version. https://www.microsoft.com/windows/windows-vista/get/system-requirements.aspx
To use windows aero in vista operating system 512 mb of ram is required
If you are asking if you can run Windows Vista on 256 MB of RAM, then yes. However, the Windows installer will not allow you to install on 256 MB of RAM without a patch. If you are asking if you can use Vista on a computer using 256 MB memory modules, then yes.