These instructions solve issues around installing/running your old AutoCAD 2012 on 64bit Windows 11. Some common issues are error messages like these
You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD LT 2012 installation so that you can be up and running again… Follow these instructions:
Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.
We recommend that you download and install the latest Service Packs from Autodesk which can be found here
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