I have a MiKTeX installation which I use for several users. I had MiKTeX set up to install packages on the fly as needed, which is probably the reason why some packages are installed "by user" and others are installed "by admin". (I have now changed the setting so that now I think the packages will be installed on the fly "by admin", see this relevant thread.)
As I understand it, the packages installed "by user" are not directly available to other users, so I probably have multiple copies of the same package for different users, which uses extra space, and also is likely the reason why I get out of sync warnings rather often.
- Is there an easy way of migrating packages from user to admin?
- If I install as admin a package that is installed by user, how can I get rid of the user copy of the package?