Server 2012R2 Physical Server, upgraded from 2012
DC / DNS / DCHP already installed
Server is internet connected
Licensed (TechNet) and activated copy of 2012R2
[EDIT] Logging on via RDP as server is in remote location at present
Attempting to install the .net 3.5 feature failing multiple times at approx. 66% with errors similar to “unable to find source files”
1) Install feature via Server Manager – fails as above
2) Mount 2012R2 ISO (TechNet) and specify D:sourcessxs as alternative path – still fails
3) both above via powershell (elevated) – still fails
4) Downloaded .net 3.5 full installation from Microsoft – won’t run as “feature needs to be installed via server manager”
Anyone got any bright ideas on this? – all the links I can find come down to specifying an alternative source for the installation files, but the relevant directory seems to contain only a manifest, not an actual installer
[EDIT] to save future readers, fixed using Wibble_Wobble’s suggestion of disabling UAC (See post 12/13 below)
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