You're joking, right? Please, how many times does one have to repeat that you can open "Slimdown10.cmd" file with a text editor to see with your own eyes what it does? Best AV one has is his working brain.
Its a batch script... You can read every letter, number and sign in the script all by yourself. If you dont know what a line does you can always use google
There are a lot of people that would want or need to own a legitimate licensed copy of Windows for whom this is not an option...
It's not just a batch script, Slimdown10_v2_02.7z is 422 MB in size, Slimdown10_v2_02.7z extracted is 581 MB. I scanned Slimdown10_v2_02.7z and Slimdown10_v2_02 [extracted] with Microsoft Defender and found nothing.
You scanned the compressed archive which explains the filesizes... Of course you didnt find anything, ITS A TEXTFILE!
Well, you are correct that Slimdown10_v2_02.7z is not just a text file. There are several hotfixes such as win32calc.exe and directx_Jun2010_redist.exe, and tools such as 7z.exe and wget.exe, among others which are included for the user's convenience. One of those might have been what triggered Eset antivirus above. Instead, those could have just been referenced with links requiring the user to download them separately, much to everyone's annoyance. But as has been explained, everything that occurs in Slimdown10 is driven by the text file Slimdown10.cmd, which you are able to read for yourself using any text editor. In addition, since your further scans using Microsoft Defender found nothing, that should also provide you reassurance that Slimdown10 is not nefarious in any way. That's not to say that it is impossible to create an install using Slimdown10 that doesn't work, but then you can do VAST damage to most Windows installations by only using "del" and "rd" in an Admin Command Prompt. The best tools for any computer user is your brain and a willingness to do a bit of reading and research before just blindly using any piece of software, no matter where it comes from.
Hahahaha. That reminds me of a lesson I learned in Army Basic Training. During our formation one soldier says (true story)... Private So-and-so: "Private So-and-so request permission to speak Drill Sergeant!" Drill Sergeant Hard Ass: "Speak private." Private So-and-so: "Do you know what time it is Drill Sergeant?!?!" Drill Sergeant Hard Ass: *looks at watch. "Yes I do." *walks away. Me: Stifles laughter as best I could. *note to self: Ask the question you actually want the answer to. I don't use a virus scanner either, because they are usually bloated, intrusive, ridiculous resource hogs from Hell, rarely actually find a virus, and almost always cause more trouble than they are worth. I have never had a virus on my PC (except once when I put it there to test the "current" virus scanner, which failed to find it), and if I get one, I don't care. I'll just wipe it out and restore a backup image. "But how do you know if you don't have a virus scanner?!?!" you say? Well, if my PC is in a bot net and mining bit coin for "da hax0rz", I think my CPU use might spike above 0-1% and I may lose a few frames per second in games. There's my "virus scanner".