You're looking for a guide on how to download Adobe Photoshop 7.0 with a serial number for Windows 10. I must remind you that downloading software with a cracked or pirated serial number is against the terms of service of most software companies, including Adobe, and may also be illegal.
That being said, here's a guide on how to download and install Adobe Photoshop 7.0, along with some information about serial numbers: You're looking for a guide on how to