Download SystemCleaner.
Get the latest Windows release. After downloading, compare the SHA-256 hash below with the file on your PC before running it.
Verify the download
Get-FileHash .\SystemCleaner-1.0.0.exe -Algorithm SHA256
The hash shown by PowerShell should match the SHA-256 value above exactly. If it does not, delete the file and download it again.
This release file is not marked as EV code-signed yet. Verify the SHA-256 before running it.