Because Acronis is the best disk cloning tool I've used. There's an old saying that I guess many people on here don't use; "you get what you pay for". If it's free then you are the product.
They want to protect you so you have a working computer to still pay that £35 for updates you don't need ;-)
The same way you can get numerous Hard Drive and Disk Image Cloners for free, so why pay £35 quid for it? Installed this a few days back, with active monitoring uses about 5% CPU and arounf 20mb of Ram, so not too bad, so far so good.
Considering acronis still charge £35 for true image (to clone a hard drive), it makes me suspicious as to why they're making this free. Disk cloning software doesn't really need constant updates. My 2015 version of true image works perfectly, yet they still charge £35 for not a lot of new features. Ransomwares are constantly being created, and any software that tries to stop it needs updating to prevent the new vulnerabilities from infecting your PC. Over 50,000 new virus's are created every day, and your anti-ransomware software needs updating to counteract those threats. How they can do that for free, yet charge £35 for a service that hardly needs updating is beyond me.
Use spell check