Maybe try to run the program as administrator.
Even if it’s not the best solution, you could also start from an empty file that you would open with a double click then just choose the Save menu item. Just use the EmptyFile.sh3d attached to this post and rename it if you want.
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EmptyFile.sh3d
(3279 bytes)
(Download count: 224)
(Empty home file)----------------------------------------
Emmanuel Puybaret, Sweet Home 3D creator
