While many of us are looking forward to advent of this modern O/S and browser, this article from Computerworld shares key considerations and some users may want to delay immediately updating system if they are uncomfortable with some of points listed below.

Additionally, before WIN10 is installed, backup all your data onto USB or other drives to ensure no loss of valuable information just in the worst were to occur (while highly unlikely, it’s always a best practice to be backed up anyway in case of a hard drive failure)

http://www.computerworld.com/article/2945195/microsoft-windows/9-reasons-not-to-upgrade-to-windows-10-yet.html

Windows 10 is just about here — and many users (especially those who have been wrestling with Windows 8) are probably eager to upgrade. But even if you can get it now — the upgrade will be sent first to those who signed up for the Windows Insider beta program and then in “slow waves” to everyone else — you may want to hold off. Here are nine reasons you might want to put off a Windows 10 upgrade.

1. Your system can’t run it — in order to run Windows 10, you need a PC or tablet with a 1GHz processor or faster, 1GB of RAM for 32-bit machines or 2GB for 64-bit machines, 16GB hard disk space for 32-bit machines or 20GB hard disk space for 64-bit machines, a DirectX 9 or later graphics card with a WDDM 1.0 driver and an 800 x 600 display or better.

2. You get a year for the free upgrade offer – You have a full year and the clock starts on July 29, 2015.

3. You’re using Windows 7 — So if you currently use Windows 7, you’re already set — you have a Start menu and you work only on the desktop. In short: If you’re happy with the way Windows 7 works, you may want to stay with it.

4. You like Windows 7 desktop gadgets — Windows 7 includes desktop gadgets that do things such as check the weather and stock quotes, monitor your CPU, report about the state of your system, let you listen to streaming radio stations, and check your hard drive speed and the state of your network

5. Security updates for Vista, Windows 7 and Windows 8 will be available for years — Microsoft will keep issuing security patches for Windows 7 until January 2020 and for Windows 8 until January 2023. Even Windows Vista will get security updates until April 2017. So no need to rush.

6. You use OneDrive placeholders — In Windows 8.1, OneDrive placeholders, also called smart files, let you see all of the files in OneDrive, even if the files are located in the cloud and not on your device. When you double-click a placeholder on your PC, the file is downloaded

7. You have old peripherals and devices — The Achilles heel of most new operating systems is handling older peripherals, such as printers and scanners.

8. You love Windows Media Center — There are some people who are big fans of Window Media Center, which was released way back in 2002 and which is used to play video, music and other media. Microsoft has been trying to kill it off for years, and even disbanded the team responsible for it back in 2009.

9. You don’t need the pain of early adoption — No matter how widespread beta testing is for a new operating system, it can’t uncover all the bugs and gotchas. A new operating system hasn’t been tested on every possible piece of hardware, with every piece of software, and with every hardware/software combination. People who upgrade immediately are the guinea pigs. They’re the ones who feel the pain.