I've just migrated from MacTeX (on 10.7) to MiKTeX 2.9 (Windows 7) and I'm getting some pretty nonproductive errors.
I'm using the "Basic" MiKTeX install (via
basic-miktex-2.9.4407.exe) and I have not manually altered the distribution in any way. This is a completely out-of-the-box install.
Whenever I try to update MiKTeX via the "Update" program, I get the following error:
The operation could not be completed for the following reason: Windows API error 5: Access is denied. Details: C:\
When I try to install a package that I don't currently have, I get the following error:
pdflatex.EXE: Windows API error 5: Access is denied.
Basically, whenever I try to do anything in MiKTeX I get some flavor of the
Windows API error 5: Access is denied. error.
Further searching/Googling of the internet and document hasn't yielded any specific results or potential fixes.
I'm new to Windows (and MiKTeX, for that matter), so I'm kind of puzzled on what's going on and how to fix it.