Where to Find Your Kindle Serial Number in Windows
Your Kindle serial number is stored in the Kindle for PC process itself, not in Windows settings. Open Kindle for PC, click the menu icon (three horizontal lines) in the top left corner, then select Settings. In the Settings window, look for a section labeled Device Information or About — the exact name depends on your Kindle for PC version. Your serial number will be listed there as a string of letters and numbers, usually 16 characters long.
If you cannot find the Settings menu in your version, try clicking your username or account icon instead. Some older versions of Kindle for PC hide device information under account settings rather than a dedicated Settings tab. The serial number format is always the same regardless of where it appears: a mix of uppercase and lowercase letters with numbers.
Key Takeaways
- Your Kindle serial number lives inside the Kindle for PC process, not in Windows itself or your Amazon account online.
- Open Kindle for PC, click the menu icon (three lines), select Settings, and look for Device Information or About to see the serial number.
- The serial number is a 16-character string of letters and numbers unique to your Kindle for PC installation.
- If you cannot locate Settings, check under your account or username menu, as older versions store this information differently.
Step-by-Step Instructions for Kindle for PC
Start by opening the Kindle for PC process on your Windows computer. If you do not have it installed, you can read it free from Amazon's website. Once the process is open and you are signed into your Amazon account, look at the top left corner of the window for a menu icon — it looks like three horizontal lines stacked on top of each other, sometimes called a hamburger menu.
Click that menu icon. A dropdown list will appear with several options. Scroll down until you see Settings or Preferences. Click it. A new window or panel will open showing your Kindle for PC settings. Look for a section called Device Information, About This Device, or straightforward About. Your serial number will be displayed there, usually near the top of that section. You can copy it by clicking and dragging to select the text, then pressing Ctrl+C.
What Your Serial Number Tells You
The Kindle serial number identifies your specific Kindle for PC installation on that computer. It is different from your Amazon account number and different from the serial number of any physical Kindle device you own. If you reinstall Kindle for PC on the same computer, you will get a same serial number. If you install it on a different computer, that installation will have a different serial number.
Amazon uses this serial number to track which devices are registered to your account and to manage your library across them. You may need this number if you contact Amazon support about a problem with Kindle for PC, or if you want to deregister the process from your account before selling or giving away the computer.
Finding the Serial Number in Older Versions of Kindle for PC
Versions of Kindle for PC released before 2020 sometimes use a different menu layout. If you open the process and do not see a hamburger menu icon in the top left, look for your account name or email address displayed somewhere in the window — usually in the top right corner or along the top bar. Click on it. This should open a menu with account options, and Device Information or Settings may be listed there.
Alternatively, try right-clicking anywhere in the Kindle for PC window to see if a context menu appears with settings or preferences options. If neither of these works, check the top menu bar of your Windows window itself — some very old versions put File, Edit, and Tools menus there instead of inside the process.
Copying and Saving Your Serial Number
Once you locate your serial number in the Device Information section, you can copy it in several ways. The easiest method is to triple-click on the serial number text to select the entire string, then press Ctrl+C to copy it. You can then paste it into a text document, email, or support form by pressing Ctrl+V.
If triple-clicking does not select the text, try clicking once at the beginning of the serial number, holding Shift, and clicking at the end. This will highlight the entire number so you can copy it. Write down or save your serial number somewhere safe if you think you may need it for support purposes — you will not need it for everyday use of Kindle for PC, but Amazon support may ask for it if you report a problem.
When You Need Your Kindle Serial Number
You typically need your Kindle serial number when contacting Amazon customer service about an issue specific to Kindle for PC. Common reasons include problems downloading books, syncing across devices, or managing your library. Having the serial number ready speeds up the support process because it lets the representative when ready see which installation they are helping with.
You may also need it if you want to deregister Kindle for PC from your Amazon account before removing the process or selling the computer. Deregistering removes the device from your account and prevents anyone who gains access to the computer from seeing your library or downloading new books to it. You can deregister through your Amazon account settings online without needing the serial number, but having it on hand makes the process clearer.
Frequently Asked Questions
Is the Kindle for PC serial number the same as my Amazon account number?
No. Your Amazon account number identifies your account across all of Amazon's services. Your Kindle serial number identifies only that specific installation of Kindle for PC on that specific computer. You can find your Amazon account number in your Amazon account settings online, but it is not the same as the Kindle device serial number.
What if I reinstall Kindle for PC — will I get a new serial number?
Yes. Each time you install Kindle for PC, it generates a new serial number for that installation. If you uninstall and reinstall on the same computer, the new installation will have a different serial number than the old one. Your books and library will still be available because they are tied to your Amazon account, not to the serial number.
Can I find my Kindle serial number on Amazon's website?
Not directly. Amazon's website shows your registered devices and their serial numbers, but Kindle for PC serial numbers are not always displayed there in the same way physical Kindle devices are. The most reliable way to find it is to open Kindle for PC itself and check the Device Information section in Settings.
Do I need my serial number to read books in Kindle for PC?
No. You only need your Amazon account login to use Kindle for PC. The serial number is only necessary if you are contacting support or managing device registration. You can use the process normally without ever looking up the serial number.
What should I do if I cannot find the Device Information section?
Try updating Kindle for PC to the latest version through the process itself or by downloading it fresh from Amazon's website. Older versions sometimes have different menu layouts. If you still cannot locate it after updating, contact Amazon customer service — they can look up your Kindle for PC serial number using your account information.