I'm using miktex and there are few packages that I don't have on my pc so I downloaded them , where should I put them to make them functional ( the folder name).
If you only need the seperate downloaded packages for one project only, you can store them in the project folder.
The correct way to install packages using the MiKTeX Package Manager:
Start -> All Programs -> MiKTeX 2.9 -> Maintenance -> Package Manager
In the program choose either all needed packages by selecting them via
and then start the download from
Task -> Install
Else you can download packages by
Edit -> Select All
Edit -> Select Installable Packages
The download is started as explained above. Uninstalling packages is analogue to the install procedure.