Kung without auto-renewal ang pinili mo, (180 days for VL products, 30 days for 8 Core/Pro-WMC and 45 days for 8.1 Core/Pro-WMC/Pro Student & 10 Home). Need mo ulit i-run yung script manually kapag nag-expire.
Pero kung with auto-renewal, parang permanent na rin ang effect kasi mare-renew yung KMS activation on a frequent basis (automatically).