How to Create a Bootable Windows 8.1 Update USB Drive

[Turk.]

By Mihaita Bamburic 56 minutes ago

Even though Windows 8.1 has been designed to work fine on touch-enabled devices as well as traditional PCs, many argued that Microsoft was still not doing enough to please those who are exclusively relying on a keyboard and mouse to navigate through the operating system. Luckily for them, Microsoft has listened to user feedback and introduced Windows 8.1 Update, during the latest Build conference.

Microsoft has revealed that Windows 8.1 Update -- well, the Update bit anyway -- will roll out to consumers starting April 8. The refreshed operating system as well as the individual update are already available though, to MSDN and TechNet subscribers. Here is how you can create a bootable Windows 8.1 Update USB drive.

Requirements

In order to create a bootable Windows 8.1 Update USB drive you will need the following:
?A device that is running Windows;
?The Windows 8.1 Update DVD or ISO file;
?A 4 GB or larger USB drive (ideally a fast one).

What If I Have a Windows 8.1 DVD/ISO?

If you have a Windows 8.1 DVD or ISO you can slipstream Update, which effectively turns it into a Windows 8.1 Update setup. Since Microsoft does not provide an easy-to-use official tool, you will have to rely on third-party software for this.
WinReducer and Win Toolkit are two tools which can serve this purpose well. No matter which one you end up choosing, here is what you have to do (these are the universal steps):
1.Open the DVD or ISO file using the dedicated software (you can also extract the contents in a specific folder, and use it instead, for the process, with that software);
2.Without performing any other changes, load Update -- each individual component, in the order presented below -- in the software's slipstreaming/integration tool;
3.Initiate the process.

Because Microsoft recommends applying each Update component in a specific order, you have do the same for slipstreaming/integrating the updates in the setup, to avoid running into any issues, as follows:
1.KB2919442;
2.KB2919355;
3.KB2932046;
4.KB2937592;
5.KB2938439;
6.KB2949621.

What If I Only Have a Windows 8.1 Product Key?
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[jasondefaoite]

Or http://www.microsoftstore.com/store/msusa/html/pbPage.Help_Win7_usbdvd_dwnTool

[majortom1981]

If you have the TechNet / msdn access required to get the update today , then you can just download the windows 8.1 with update 1 iso right from the site. why go through all this trouble?