System Requirements:
The proposal calls for Windows 7 is still more or less the same as the Windows Vista:
* 1GHz processor. 
* 1GB of RAM.
* 20GB hard drive with 16GB of free space.
* A graphics card to support DirectX 9 and WDDM driver.
* 128Mb of memory the graphics card.
However, Windows 7 has been distorted in order to maximize system performance, which means that the effect of the Windows 7 than on your computer Windows Vista, and, in some tests, even in Windows XP. This allows users netbooks and older computer running Windows 7 may have a place difficult or impossible with Windows Vista. It also means that you can run Windows 7 lower than the system specifications above, but is not recommended in order to take full advantage of the operating system.
Upgrade to Windows 7:
You can upgrade to Windows 7 is Windows XP SP3 (or higher) or Windows Vista SP1 (or higher). However, please note that this is not possible to upgrade the 32-bit versions of Windows 64-bit versions of Windows, and vice versa. Therefore, if you want to install Windows 7 to replace the previous version (limited to Windows 95/98/ME/2000) or you want to 32-bit/64-bit across the border, you must perform a clean install, which means that to back up your personal files, clear the hard drive and install everything from scratch.
Windows 7 Compatibility:
Any application and any work around with Windows Vista and Windows 7, Microsoft’s efforts to prevent another disaster like the link compatibility with Windows Vista. In addition, some applications and devices do not work with Windows Vista and Windows 7 as a result of the expansion of compatibility.
However, the upgrade from Windows XP will still faces significant potential compatibility problems. With this in mind, I suggest the wiki Click here to review the topic has been committed. It contains a huge list of software testing (designated by the other users) on Vista and the determination of compatible, incompatible, or in between. A similar wiki exists for hardware is tested with Windows Vista … please click here. If you have hardware or software, you test Windows Vista and is not listed I encourage you to add it to the list, so that other countries may benefit from this knowledge. You must be registered in order to update the list, but registration is free of charge. In addition to these two wikis, Microsoft recently compiled their own list can be found, please click here. These items should be used as guidance compatibile hardware and software to a more comprehensive listing in place of Windows 7.
In addition, taking into account some of the software can not install or run on Windows Vista can be dealt with in one of two ways:
1. ) The use of compatibility mode. The purpose of the Windows 7 compatibility mode is the program is designed to automatically detect the old versions of Windows, however, as in Windows XP and Vista, it can make manually. To manually enable Compatibility Mode, right-click the program, select Properties, select the Compatibility tab. Then, you can enable the program in compatibility mode and select a previous version of Windows from the drop-down menu, in addition to other options.
2. ) Please be sure to check back to the author’s Web site an updated version of the patch and the opening of the Windows 7 driver compatibility. Not all software will be compatible, but in three months after the release of Windows 7 you should see a significant increase in support for third-party suppliers.
If you have a specific question of the hardware or software compatibility at any time to start a new thread, but please first check the list above.

