Your AutoCAD/LT2013 is not supported in Win10, which means Autodesk is not interested ever in helping you with any issue, it does not mean anything else you might read into "supported" http://autode.sk/1IY4C2X
Autodesk will end automatic reauthorizing of 2016 and older software as of this coming March 2021, read all about it here https://knowledge.autodesk.com/support/autocad/learn-explore/caas/simplecontent/content/previous-ver...
Windows10 is known to break licenses with its updates so at some point your 2013 software will become dead in the water so to speak. So have a backup plan if you decide to leap to Win10.
If you still have your old Win7 PC and all works well, hang on to it for as long as it will last, then figure out a new option if you are unable to join Autodesk Subscription for newer software. If you find Autodesk software subscriptions too expensive, there are many other CAD packages out there with no subscription options (initial cost may still be comparably high) that you can go get and use.
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