Rain Cleaner never acts first and explains later. The order is always the same, and the last word is always yours.
Rain Cleaner checks only the areas it is designed to clean. It does not wander through your documents, and it does not touch anything while it is looking.
Every result explains what it is, where it came from and what you may lose. When something looks removable but should stay, it says so plainly instead of hiding it in a list.
You approve the changes. Nothing important happens behind your back, and every driver install keeps the previous version, so there is always a way back.
Everything above waits for you. Protection does not, and it should not: while a program is encrypting your documents, the minutes spent waiting for someone to click are the files you do not get back. So it takes a snapshot of the disk at the first serious sign, and at the point where the evidence is no longer ambiguous it stops the program doing the writing — then tells you exactly what it saw and why. You can switch both of those off. They are the only two things in Rain Cleaner that act on their own, and they are listed on the screen that does them.
From Microsoft's own update catalogue. Rain Cleaner does not host drivers itself and does not repackage them. Where the manufacturer publishes sooner than Microsoft, it points you at the manufacturer's own page.
The previous driver is kept before the new one is written. Rolling back is one click, and it works even if the new driver broke the network.
No. It holds the changes only while the game runs and puts every setting back when you close it. If the power goes out mid-game, the next start finds the record and restores the machine.
For updates, yes. Offline rescue is built for the case where you have none — it carries basic Wi-Fi drivers so you can get the connection back first.
No, and it is not sold as one. There is no signature database behind it. It watches for the shape of an attack — files being rewritten, restore snapshots being deleted, the security service being stopped — and it is built around the one thing an attacker cannot switch off from inside their own program: the contents of a file we wrote and can read back.
It refuses to act on a guess. A suspicious-looking command line can raise the alarm but can never end a process; only a serious act can — deleting your restore snapshots, hijacking BitLocker, killing the antivirus. And whatever it does is written down with the evidence that led to it.
Not the line itself — nothing on a PC can, and anyone claiming otherwise is not being straight with you. What it can do is measure which DNS resolver answers fastest and switch to it, which shortens the pause before every new connection. That part is measured in front of you, in milliseconds.
Windows 10, Windows 11 and Windows Server. On a server it advises rather than cleans, because a server is not somebody's desktop.
Because the file is not code-signed yet. SmartScreen says the same about every unsigned installer, no matter what is inside. If you would rather skip that screen, take the portable version — it is the same program in a zip, with no installer to run.