Rain Cleaner finds what is filling your drive, keeps your drivers current, and frees up resources while you play. Before anything is deleted, it shows you what it found and why it can go.
Old update filesLeft behind after a Windows update. Removing them will not roll anything back.4.2 GB
Temporary filesPrograms write them while they work, then forget them.1.8 GB
Recycle BinFiles you have already deleted once.760 MB
Browser cacheIt will fill up again. Sites open once more slowly, then as before.312 MB
Selected7.1 GB
Delete selected
In short: Rain Cleaner is a free Windows 10 and 11 program that shows what is filling your drive and explains every item before anything is deleted. It also checks your drivers. Free has no time limit, no ads and no account; Pro, from €5.99 a month, installs all drivers at once and can be tried free for 7 days.
Rain Cleaner Pro
Fix, speed up, update and undo — one click each, and the disk cleans itself when it runs low.
Official Scoop bucket. Hashes are verified during installation. Trust Center
Questions
What people ask before downloading.
What is Rain Cleaner?
Rain Cleaner is a free cleaner and driver tool for Windows 10 and 11, published by Where2Go LTD. It finds what fills your drive, checks your drivers through Microsoft's update catalogue, frees resources while you play and watches for early signs of ransomware, and it explains every item before you approve a change. Pro (from €5.99 a month) adds automation; the free version has no ads.
Do I need an account?
No. The free version needs no account, no e-mail address and no card. If you buy Pro, you get a licence key by e-mail and enter it in the program; one key works on up to 3 PCs.
Is it really free?
Yes. The free version has no time limit and no ads, and needs no account and no card. Pro is an optional paid upgrade; you never have to buy it.
Do I have to remove my antivirus?
No. Rain Cleaner runs alongside Windows Defender and any other antivirus. It stays out of their way and does not try to do their job.
Can I run it without installing anything?
You can. The portable version unzips into a folder and runs from there. Nothing is left in the system, and deleting the folder removes it.
More questions
Will it delete something I need?
Nothing is deleted until you approve it. The list sits in front of you with a size and a reason on every line, and the checkboxes are yours.
Which Windows does it run on?
Windows 10 and Windows 11, including the server editions. Older versions are not supported.
What languages does it speak?
13 languages: Български, English, Deutsch, Español, Русский, Türkçe, Português (Brasil), 简体中文, 日本語, 한국어, Tiếng Việt, Bahasa Indonesia, ไทย. You can change it in the settings at any time.
Is Rain Cleaner safe?
Nothing is deleted until you approve the list, and every line says what it is and why it can be removed. There is no in-app telemetry and no third-party analytics. The Trust page lists the file hashes, the scan results and every server the program contacts.
Why does Windows SmartScreen warn about Rain Cleaner?
Rain Cleaner is code-signed by Where2Go LTD, but the signature is new and SmartScreen judges files also by how widely they are downloaded. You can use the portable ZIP, and compare the SHA-256 hash on the Trust page with the file you downloaded.
Does Rain Cleaner send my data anywhere?
Your scans, history and settings stay on your PC. It contacts raincleaner.eu for the update check (at most once a day, can be turned off) and for the Pro licence, and Windows Update when you look for drivers. The Trust page lists every server.
Can I undo what Rain Cleaner does?
Driver changes (restore point plus exported drivers), startup entries, DNS and Game Booster changes can be reversed. Deleted temporary files, an emptied Recycle Bin and a removed Windows.old folder cannot be undone, which is why you approve the list first.
Can I back up my drivers before reinstalling Windows?
Yes, with Rain Driver, our separate program for Windows 7 SP1 to 11. Its Driver Passport saves your hardware IDs, driver versions and driver packages with SHA-256 checksums. Backup is free; one-click restore is Pro.
Coming Soon
Rain Neural Engine
Rain Neural Engine (RNE) is an AI layer in development for the Rain family. It is designed to help home users and businesses understand PC health, spot problems early and protect important data, with privacy-first collective learning.
Free lets you inspect. Pro removes the repeat work.
Rain Cleaner Free is enough for manual cleanup and checks. Pro is for the things you do again and again: scheduled maintenance, low-space cleanup, reversible actions, Performance Lab guidance and use on up to 3 PCs.