I have bought the Autocad LT upgrade from 2008 to 2014 online and have donwloaded the files and when installing it gets all the way through to the product registration and activation page and then tells me that my previous serial number is not valid. Try again (18)
Any help would be appreciated.
Did you purchase the 2014 License from our Online Store? Please send me a Private Message (click on my joane.bonghanoy profile name and then “Send this user a private message”) with the following details:
- Order Number
- Old Serial Number
- New Serial Number
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