Can I use the same key again after formatting my Windows?

In general, if you format your Windows, you can use the same key again on the same computer, as long as the hardware or main system settings have not changed.

However, we recommend carefully reading the product description on each product’s page, as the ability to reuse the key may depend on the specific terms of use. In some cases, changing important hardware components (for example, the hard drive or motherboard) may require a new key.