Serial Number Adobe Photoshop Cs4 -

HKEY_LOCAL_MACHINE\SOFTWARE\Adobe\Photoshop\4.0 (On 64‑bit Windows, the path may be under WOW6432Node )

If you bought Photoshop CS4 on a DVD or as part of the Adobe Creative Suite 4 box set, the serial number is printed on the packaging. serial number adobe photoshop cs4