Want to try out software that’s still in development and like sharing your opinion about it.
Don’t mind lots of updates or a UI design that might change significantly over time.
Really know your way around a PC and feel comfortable troubleshooting problems, backing up data, formatting a hard drive, installing an operating system from scratch, or restoring your old one if necessary.
Know what an ISO file is and how to use it.
Aren't installing it on your everyday computer.
Things to keep in mind
Unexpected PC crashes could damage or even delete your files, so you should back up everything. Some printers and other hardware might not work, and some software might not install or work correctly, including antivirus or security programs. You might also have trouble connecting to home or corporate networks.”
For Windows 7, 8 and 8.1 – You Keep: Windows settings, personal files, and most apps
There is a good chance that some of your applications that run fine in Windows 7 are not even Windows 10 compatible. You would also be in the position of forking out more money just to purchase a Windows 10 compatible version (if anything is available at this time) of software you already own, paid for and works just fine in Windows 7.
2) There is no guaranty that you will be able to upgrade from a Preview Version of Windows 10 to the final “Retail” version when it becomes available next year. If you can’t upgrade that means the preview version is a dead end and you will need to perform a fresh (“Custom” / Clean) install of Windows 10.
How to protect your existing installation of Windows 7 and evaluate Windows 10 over the coming months: Image Backup, the key to preserving your investment in Windows 7: Dual booting with an image and data backup strategy for Windows 7 will provide a layer of protection. The object is not to lose your Windows 7 operating system, applications and data files. To quickly recover should the installation of Windows 10 preview fail and to be able to easily remove Windows 10 if and when you so choose to do so. I’ll show you what you need to know in order to survive any catastrophes that may occur by providing a detailed look at backup strategies, recovery procedures and how to install the Windows 10 Technical Preview alongside Windows 7 to create a dual boot computer.
Understanding Disk Drive Partitions and what needs to be backed up:
There are a significant number of partition arrangements, each computer manufacture may have their own partition schemes with preinstalled versions of Windows 7. Systems upgraded from Vista or XP have yet another partition layout and finally to home built systems and the user’s own choice of partitions.
For this article I will be covering a couple of common BIOS / Master Boot Record based drive partition arrangements with respect to creating an Image Backup strategy and implementing it.
Image Backup concepts: All backups will be made from the Windows 7 environment and backup restoration / drive recovery will be made from a bootable recovery disk.
One such backup would be an image of the entire hard drive before you start preparing the drive prior to installing Windows 10. Note that a number of computers with Windows 7 preinstalled include a recovery partition (which may or may not have a drive letter assigned) and may also have a Utility partition (not shown in the example below) and a 100MB or larger System Partition located at the very front/beginning of the drive. The recovery/utility partitions can vary in size from one manufacture to another, as small as 10GB or as large as 50GB.
Another type of backup would be just the System and Windows 7 partition, usually called a “system backup” as it only includes the System and Windows 7 partition.
Yet another backup would only include the Windows 7 partition, more typically performed prior to when you install or remove software when in the Windows 7. You can also create a scheduled backup of the Windows 7 (C:) partition. An example would be to schedule a “Full” backup of the Windows partition every Monday (or any other day of the week) as the basis for creating “Incremental” backups (backups up only changed files on the C: partition) on Tuesday through Sunday at the time of day you select. Just remember to turn on your external USB prior to the scheduled time.
These 3 types of backups will allow you to revert to your pre Windows 10 drive configuration (single boot / Windows 7 only) should you choose to do so. The choice of which backup software is yours (Windows 7 Backup and Restore is not recommended) however I suggest one of the following four products: Note: For the upcoming installation of Windows 10 I will be using Acronis True Image 2014 which has already been installed on my Windows 7 Hard Disk Drive, for those of you using other backup software the backup software should be installed in and the "Drive Image" created from the Windows 7 environment before you make any partition changes and or install Windows 10. Each of the Image Backup software applications mentioned will backup and restore (restore when using their “Recovery DVD”) both your Windows 7 and Windows 10 partitions.
1. Acronis True Image 2011, 2012, 2013, 2014 and 2015 (2014 / 15 supports Windows 7, 8 and 8.1) Install Acronis and then create a bootable Restore/Rescue Media CD before you start creating your first image backup: http://www.acronis.com/en-us/personal/pc-backup/