I have just upgraded from my earlier Audio Cleaner Deluxe 17 (2016, and before that Audio Cleaner 3, from 2006) to Sound Forge Audio Cleaning Lab 4, to run in a virtual machine in Windows, as previous versions have.
I decided to upgrade only because I wanted to move existing programme from one virtual machine in windows (8.1) to another (Win 10) and tho installed serial number was not accepted in the Win 10 VM even after I'd uninstalled from previous VM. So I tried to reinstall on previous VM (8.1), but serial number not then not accepted there either, despite having been installed there before. Fair enough. Good programme, time I got a newer version anyway.
After downloading new [prpogramme straightforwardly, I type in my serial number activation code for ACL4 (fits letters and hyphens grouping perfectly, double checked), and it doesn't accept it. I've checked my previous purchases in my account, all there. I've looked at tech help on Magix site, installed MGX installer helper but it showed nothing in dropdown. Have had no previous difficulties with Magix 17 in a Windows VM, including after reinstalling in replacement version after unfortunate VM crash. If only in Win 10 I'd assume something to do with OS but not being able to install either new version or old version back in 8.1 - feels like an exasperating purchase.