While downloading Windows 8.1 my PC went into Sleep Mode

Hi all.
I have Power Options on my Desktop PC set to defaults..i.e Balanced is set to 10 minutes for display and 30 minutes for Sleep.
Yesterday I went to Windows Store to download the Windows 8.1 Update to update my Windows 8.
I clicked the download button and went to watch TV while it downloaded. After a while I noticed that my PC had gone to sleep. I pressed the sleep button on my keyboard to wake the PC up. I wasn't sure if the Windows 8.1 Update would just resume where it was before it went into Sleep mode or whether I would have to start the download again by going back into the Windows Store to download it again from the beginning. After waking my PC up I decided to just leave it at the desktop screen to see what happened. 3 hours later the message came up saying that the PC needed to be restarted to install the update. When I have downloaded the Windows Update in the past it usually takes 2 hrs and 15 mins but I noticed that Microsoft have changed the Windows 8.1 Update slightly since I last installed it so I wasn't sure if that accounted for the download taking longer than usual. Some of the Download options/screens are different on the latest version so the Windows 8.1 Update has definitely been altered slightly.

1. Will the download have continued from the point where it was before it went to sleep or will it have had to restart again from the beginning?
2. I was just slightly concerned that because my PC went to sleep during the Windows 8.1 Update (and it is such an important Update) that it might have got corrupted in some way. Everything seemed to Install correctly afterwards. Is what happened normal and nothing to be concerned about?

Thanks, in advance for any help/feedback with this

you can download and create windows 8.1 setup media > Create installation media for Windows 8.1 - Windows Help

you can use the media to do the update or a clean install

Thanks but Ive already done the update to 8.1. Im just wondering if what Ive done above is normal behaviour for the Power Saving feature of Windows and if the download will have automatically continued from where it left off before my PC went into Sleep Mode.

KYHI said:

you can download and create windows 8.1 setup media > Create installation media for Windows 8.1 - Windows Help

you can use the media to do the update or a clean install

Click to expand...

Since the UPDATE was installed without issue - then no harm was done..

I do believe the update through the windows store does "resume" where it left off

Thanks for your help

KYHI said:

Since the UPDATE was installed without issue - then no harm was done..

I do believe the update through the windows store does "resume" where it left off

Click to expand...

1.Thanks very much for your feedback. Is it normal behaviour then for a desktop PC to go to sleep in the middle of the WIndows 8.1 Update download? It was something I wasn't expecting to happen because I thought the download would be seen as activity and prevent the PC from going to sleep.
That's why I was worried in case it didn't resume the download but instead started the download right from the beginning again when I woke it from Sleep mode
2 Are Windows Updates, The Windows 8.1 Update/Upgrade, Windows Store Apps all treated the same way i.e if the download gets interrupted in anyway through sleep mode activating itself or a power failure etc, it will automatically resume from the point where it was before the interruption when the PC is powered up again?