With Professional Version, all driver updates can be done automatically in one click. You can just leave the program running to update drivers and do something else.Are you having issues with the installer failing and/or shooting out various errors causing the app from installing?Apple makes no representations regarding third-party website accuracy or reliability. Windows 8.1 makes significant changes to Windows 8 and it's a worthy upgrade on any device. This isn’t entirely surprising — the best way to upgrade your operating system with the least risk of problems is by performing a fresh install.The method outlined by user683780 (manually d/l KB3173424 and KB3172614 etc) worked for me.Be sure to disconnect your computer from the internet before running these files, otherwise they will not install - your computer will look like it is installing the first one but in fact it is still trying to use the old version of windows update already installed.If you see an "Windows installer package" alert message, follow these steps to try to repair the software through the Windows Control Panel.
There are options for quickly fixing Windows Update problems or completely reinstalling it in Windows.If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware.If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices.How you'll upgrade depends on which version of Windows you're upgrading from. Windows 8.1 is a bit different from previous versions of Windows in that people generally get it through an upgrade from the Windows Store.Luckily, Microsoft allows you to download a legal Windows 8.1 ISO file, so you can make your own Windows 8.1 installer disc or USB drive.