How to check computer serial number
When purchasing, repairing or transferring a computer, looking up your computer's serial number is a common need. The serial number is a unique identification of the device and can be used to verify authenticity, apply for warranty, or track device information. This article will introduce in detail how to query the serial numbers of computers of different brands, and attach a structured display of related data.
1. Why do you need to check the computer serial number?
A computer serial number (Serial Number) is a unique code assigned to each device by the manufacturer. It is usually used for:
1.Warranty service: Verify that the device is under warranty by serial number.
2.Anti-counterfeiting verification: Confirm whether the device is official and genuine.
3.Device management: Enterprises or schools can track device information through serial numbers.
4.second hand transaction: Buyers can check the source and configuration of the device through the serial number.
2. How to check serial numbers of common brands of computers
Different brands have slightly different query methods for computer serial numbers. The following is the query method for mainstream brands:
| brand | Query method | Remark |
|---|---|---|
| Lenovo | 1. Label on the back of the fuselage 2. BIOS interface 3. Command prompt inputwmic bios get serialnumber | Some models need to be queried through Lenovo Vantage software |
| Dell | 1. Label on the bottom of the fuselage 2. Turn on the computer and press F2 to enter the BIOS. 3. Enter the Service Tag on the official website | Service tag and serial number may be different |
| HP | 1. Battery compartment or body label 2. Command prompt inputwmic bios get serialnumber 3. HP Support Assistant software | Some models need to remove the battery to check |
| ASUS | 1. Packing box or body label 2. BIOS interface 3. Command prompt inputwmic bios get serialnumber | Some e-sports books need to be checked in Armory Crate |
| Apple (Mac) | 1. Click the Apple icon in the upper left corner → "About This Mac" 2. The back of the fuselage or packaging box 3. Log in to Apple ID official website | The serial number format is a 12-digit alphanumeric combination |
3. General query method (applicable to Windows computers)
If you cannot query through brand-specific methods, you can try the following general methods:
1.command prompt:
Press Win+R and entercmdand press Enter, enter in the command prompt:
wmic bios get serialnumber
The serial number will be displayed.
2.System information panel:
Press Win+R and entermsinfo32And press Enter to find "System Manufacturer" and "System Model" in "System Summary".
3.PowerShell:
Open PowerShell and enter:
Get-WmiObject Win32_BIOS | Select-Object SerialNumber
Serial numbers can be obtained quickly.
4. Precautions
1. Some thin and light notebooks or 2-in-1 devices may have the serial number printed on the stand or under the keyboard.
2. If the label is worn, you can recheck the serial number by providing the purchase receipt through the official website or customer service.
3. Avoid leaking serial numbers on unofficial platforms to prevent them from being used for illegal activation or device cloning.
5. Related topics of recent hot topics
Among the recent hot topics in the field of science and technology,"How to identify refurbished machines"and"Computer Privacy Security"Closely related to serial number query. Refurbished or modified equipment can be effectively identified by checking the serial number against the official database. In addition, new EU regulations require electronic products to be marked with maintenance QR codes, and serial number inquiries may be further simplified in the future.
I hope this article can help you quickly check the serial number of your computer. If you have any other questions, please leave a message for discussion!
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