Below is the command line result (the GUI one is very similar):
C:\Program Files (x86)\Android\android-sdk\tools>android update sdk -u -a -t 3
.... licensing stuff
Installing Archives:
Preparing to install archives
Downloading Android SDK Build-tools, revision 18.1.1
URL not found: C:\Program Files (x86)\Android\android-sdk\temp\build-tools_r18.1.1-windows.zip (Access is denied)
Done. Nothing was installed.
I didn't find anything on the web that could help. What could be the problem?
open the android Sdk folder right click on sdk manager run as administrator. select update/new install.