Precaution before updating bios
Even though Windows can detect and install most device drivers, it's a good idea to always update to the latest and just to have them handy in case you need to reinstall any of them after the upgrade.
(Trust me, you don't want a network adapter problem after the upgrade and without a network connection to find a solution.) Here is a list of the most common PC manufacturer websites support to download drivers and software: In the case you're dealing with an old application, see if there is an update available or decide if it's time to upgrade.
From making sure all your system's components are compatible with the new operating system, to preparing a recovery plan, to making the necessary changes to prevent possible hiccups during the process.
If everything is good, you'll see a green message saying "This PC meets the system requirements", and you can now safely click the Reserve button to complete the reservation.
While most hardware and software should work without a problem, typical compatibility issues could include wireless and Bluetooth adapters, outdated drivers, and very old applications.
To prevent such a nightmare, you need a recovery plan, but luckily, both Windows 7 and Windows 8.1 come with a System image backup tool.
The System image backup can be found in the Control Panel and it's a tool that will help you to create a bit-by-bit copy of your entire system's hard drive, including operating system, settings, programs, and files.
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You can check out our previous guide on how to create a full backup.