Windows XP and Windows Vista is comptabile with a direct upgrade. But as long as the minimum requirements are met you can install Windows 7 on any PC. The minimum requirements to run it are as follow:
1 GHz 32-bit(x86) or 64-bit(x64) processor.
1 GB RAM (32-bit) or 2 GB RAM (64-bit).
16 GB storage (32-bit) or 20 GB (64-bit).
DirectX 9-graphic with WDDM 1.0 or higer.
There are free firewall programs that are available such as Windows Firewall, ZoneAlarm, Outpost and Comodo. Some of these firewalls offer upgrades for a small cost, and you can download the free versions or upgraded versions directly from the specified websites.
Yes, the 4S has many upgraded features from previous versions such as the voice assistant Suri. The phone provides access to the internet, your music, and is a pocket size camera and camcorder.
yes
No. Server editions of Windows cannot be upgraded to Home versions and vice versa.
Yes, but there are also upgraded versions that you can choose to use, and they cost money.
Mojang does not sell previous versions of Minecraft. If you have a Minecraft account, download a mod which allows you to play previous versions of the game.
no
You are not able to get previous versions of WolfQuest.
because it is so much better then the previous versions of windows both graphically and in performance. its faster and smarter than the previous versions of windows
:D
backup
Because new version of Photoshop have features not available in previous versions, this does not mean you can not open file from new version in some of previous but mean that features not available in previous versions will be rasterized and flattened. To ensure that anyone can open PSD file in previous version turn on Maximize PSD and PSB File Compatibility when saving file (Edit > Preferences > File Handling).