What is the key to Lenovo Xiao Xin's recovery?

Search for "Lenovo official website" in the browser, open the service in Support, and click Drive to download.

Enter the computer host number.

Find the corresponding software, download and install it.

Lenovo notebook key has a number with SN on the back of the notebook. Office 2007 software key is: DBXYD-TF477-46YM4-W74MH-6YDQ8.

The product key is the proof of product authorization, and it is a random number generated according to a certain algorithm (such as elliptic algorithm). When the user inputs the key, the product will judge whether it conforms to the corresponding algorithm according to the key input, thus confirming the user's identity and usage rights.

Keys are activation codes, which generally refer to digital keys of various network products.

Keys are activation codes, which generally refer to digital keys of various network products. Keys do not use the same keys to encrypt and decrypt data as some encryption technologies do. Public key encryption technology uses a pair of matching keys to encrypt and decrypt data.

Each key performs one-way data processing, and the function of each key is just the opposite of the other. When one key is used for encryption, the other key is used for decryption. The public key is made public by its owner, while the private key must be kept secret.

In order to send a confidential message, the sender must use the public key of the receiver to encrypt the data. Once encrypted, only the receiver can decrypt it with his own private key. Conversely, users can also process data with their own private keys.