Microsoft has released a troubleshooter to help find problems that may prevent you from updating to Windows 8.1.
You can try this troubleshooter here.
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If you do not see the Windows 8.1 update in the Windows Store, here are some of the reasons. You can find more details here on why you may not be seeing the Windows 8.1 update.
a. If you’re running Windows 8.1 Preview, here’s how to update to the final version.
b. If you’re running Windows Enterprise Edition or Volume License version of Windows Pro. You must speak to your system administer to learn how to update.
If you are not sure, the following steps will help you identify if you have a Volume License version of Windows:
If it says something that resembles Volume, you won’t be able to get it through the store and will need to talk to your system administrator about their plans for rolling out this update based on the Volume License agreement through the
Volume Licensing Service Center (VLSC). If you are the system administrator or the person responsible for your company’s computers, you should refer to this article for information on how to upgrade.
c. If you’re using a Multiple Activation Product Key through a Commercial or MSDN contact. To install the update, you need to use media obtained through those programs.
If you are having issues with installing Windows Update we recommend you post for help with that issue.
You may also attempt an automated fix by running the Windows Update troubleshooter
(If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Settings.)
To refresh the catalog, try pressing the Windows and R key together to open the run box, type WSReset.exe and hit Enter. Reboot and check the Windows Store again.
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Microsoft has released a troubleshooter to help find problems that may prevent you from updating to Windows 8.1.
You can try this troubleshooter here.
You cannot update a 32-bit machine to a 64-bit machine unless it uses a 64-bit processor. You can install a 32-bit O/S onto a machine with a 64-bit processor, but manufacturers haven't done that for years now.
However, it does appear that the Intel Pentium E2140 is in fact a 64-bit processor. Assuming that your RAM and other components are also compatible with 64-bit, you should be able to install the 64-bit O/S, although what havoc that will wreak with your applications is something I could only speculate about.
Hi where do I type it
Hi there when I click on the update in the store for windows 8.1 I get a error , but some reason my windows 8 is a volume version and im not sure how u can install it as a volume user... please help
Has anyone tried entering:
ms-windows-store:WindowsUpgrade
into their browser address bar?
Even though I have already performed the upgrade, this takes me to the appropriate page on the store.
See also:
http://windows.microsoft.com/en-gb/windows-8/update-from-windows-8-tutorial?ocid=W8_apps_81pdp
http://windows.microsoft.com/en-gb/windows-8/update-from-preview
If you want to download an installation ISO
http://windows.microsoft.com/en-US/windows-8/upgrade-product-key-only
If you only have a windows 8 product key, but want the 8.1 ISO:
http://winsupersite.com/windows-8/windows-81-tip-download-windows-81-iso-windows-8-product-key
If nothing seems to work try a virtual machine: