There are a lot of ACAD solutions on Google search (Draftsight, copy to clipboard failed). Perhaps one of these will help. It seems it has to do with Proxy Objects. One solution is to explode all proxy objects. Sylvia
This is another solution:
Solved! by pendean. See the answer in context.
copy/clip creates a dwg file in your Windows log-in temp folder, for which you must have read/write/rename/delete access to for it to work best. Empty it first and see if that helps. Talk to your IT about it all.
Solved! by johngolden. See the answer in context.
Problem was IT.
All working now, I was having to run the AutoCad as Administrator for it too work.
It was to do with the lack of Admin rights that i had and the location that AutoCad wanted to store the temporary files.