In the system requirements, "Windows 7 or Windows XP (64-bit)" needs to keep the Windows versions but maybe adjust the phrasing, but the OS names are brand names so they stay.
I'll need to go through each part of the text step by step, replacing each word (excluding brands/names) with three options, making sure the alternatives make sense in the context of software installation and activation. I should also maintain the overall flow and instructions' clarity after replacements.
"Make sure" → "ensure|verify|confirm". "Backup" → "archive|preserve|store". "Important files" → "critical data|vital documents|essential information". "Before installing" → "prior to implementing|before setting up|before deploying".
Once you have received the AutoCAD 2012 x64 installer and the X Force-2012 exe file, commence with these instructions: