A: No. Those videos are fake. They usually show KMService or a renamed executable. When you download the file linked in the description, you will get a virus. KMSpico (by Heldigard) only works for Windows 7/8/10/11 and Office 2010-2021.
The Nostalgia Trap: The Truth About "KMS Activators" for Windows XP kms activator windows xp professional free
Therefore, using a "KMS" activator on XP is a misnomer; it is actually file tampering or bootloader injection. kms activator windows xp professional free