(shrug) You never know -- I remember situations where I'd run across XP systems that didn't have any SP installed -- this was a few years after SP2 had been out. In those cases it became an issue only after they tried to install some software that wanted at least SP1.

>When was the last time you saw a Win7 machine that did *not* have SP1?
>
>>You must have SP1 or Ultimate to get that support. Mainstream support has already ended.
>>
>>https://support.microsoft.com/en-us/lifecycle/search?sort=PN&alpha=windows 7&Filter=FilterNO&forceorigin=esmc
>>
>>
>>>Windows 7 will continue to receive security updates until at least its 2020-01-14 EOL.
>>>
>>>http://www.pcmag.com/article2/0,2817,2475079,00.asp