title: Manually download missing package for visual studio
body: <p>When installing visual studio if we already have deleted content of <code>C:\ProgramData\Package Cache</code> directory then whole setup process will be turned into a real nightmare constantly complaining about missing packages. I've searched the web for a solution and the only working one I've found is a tool called <code>install and uninstall troubleshooter</code>.but the problem with it is i have to interrupt setup process and use this tool to remove the package and then get back to setup again which is really cumbersome job to do.
  But the good thing is for every package that visual studio fails to uninstall it logs a <code>GUID</code> like this <code>{A2999714-5C2C-3729-A911-4AE198B7B2FD}</code> in the log file.Now better and ideal solution in my mind is looking after an official website from which i be able to download each of these packages by these <code>GUIDEs</code>.Is there such a location in the web? or is there any better solution to solve the issue? </p>