I understand you're looking for information on how to remove watermark from Windows Vista Home Basic 32-bit. The watermark you're referring to is likely the one that appears on the desktop, usually indicating that the version of Windows is not activated or is a trial version.
: Windows Vista allows you to extend the 30-day activation grace period legally using the "rearm" command. You can do this up to three times for a total of 120 days. removewat windows vista home basic 32 bit link
(All instructions are written for a typical desktop or laptop that is currently running Windows Vista Home Basic 32‑bit. If you are using a different edition or a 64‑bit version, the overall process is the same – just be sure to download the correct media for the OS you intend to install.) I understand you're looking for information on how
RemoveWAT (Windows Activation Toolkit) is a popular tool for bypassing Windows activation. Here's how to use it: You can do this up to three times for a total of 120 days