To format a USB drive in Windows, follow these steps:

1. Insert the USB drive into your computer’s USB port.
2. Open File Explorer by pressing the Windows key + E on your keyboard.
3. Right-click on the USB drive that you want to format and select “Format”.
4. In the Format window, you can choose the file system and allocation unit size that you want to use. If you’re not sure, you can leave these settings at their default values.
5. You can also give the drive a new name if you want to.
6. Click on “Start”.
7. Windows will now warn you that all data on the USB drive will be erased. If you’re sure that you want to proceed, click on “OK”.
8. Wait for Windows to format the USB drive. This may take a few minutes depending on the size of the drive.
9. Once the formatting process is complete, you will see a message saying “Format Complete”. Click on “OK”.

That’s it! You have now formatted your USB drive in Windows. Keep in mind that formatting the drive will erase all data on it, so make sure to back up any important files before formatting the drive.