To move your license to a new computer, simply install the free version on the new device and enter your existing key [5.16].
This is the most common source. Look for an email sent immediately after your purchase [5.3, 5.4, 5.9]. Ccleaner pro license key
While many websites claim to offer "free" or "cracked" license keys, using them carries significant risks. Official guidance from CCleaner Support warns that these keys are often bundled with: To move your license to a new computer,
This usually happens if you have a new replacement key or if the license was used on more devices than allowed [5.6]. and Android devices [5.18
If you have a Pro Plus or Premium license, the same key can be used across multiple PCs, Macs, and Android devices [5.18, 5.21].