<p>If you’re one of the millions of PC users who still have <strong>Custom Replacement Windows XP</strong>, your computer may not have enough hardware to run the new <strong>Custom Replacement Windows 7</strong>. Worse yet, you have a tedious and long upgrade process ahead, essentially requiring you to remove everything on your current hard disk and reinstall it. If you’re running Custom Replacement Windows Vista, the procedure won’t be tough, but not necessarily pain free. And you still might want to go through the more thorough and time consuming upgrade process facing <strong>Custom Replacement Windows XP</strong> users. <br /> <br /> <strong><a rel="nofollow" onClick="javascript:pageTracker._trackPageview(‘/outgoing/article_exit_link’);" href="http://Custom Replacement Windows7.iyogi.net" target="_blank" title="Custom Replacement Windows 7">Custom Replacement Windows 7</a>, </strong>which released in October, has several editions such as <strong>Custom Replacement Windows 7 Home Premium, </strong>Pro, and Ultimate etc. <strong>Custom Replacement Windows 7</strong> comes in two flavors either go for 32 bit or 64 bit. The latter can be speedier, depending on the type of software you run. But few programs can take advantage of what it offers, so be cautious in this choice. In order to install 32-bit version, your computer will need to have 1 GB of RAM, a 1 GHz processor or better and around16 GB of available space on its hard drive. The requirements for the 32-bit version are about the same as those for Custom Replacement Windows Vista, that mean most Vista users should be able to <strong><a rel="nofollow" onClick="javascript:pageTracker._trackPageview(‘/outgoing/article_exit_link’);" href="http://Custom Replacement Windows7.iyogi.net/insight-series-Custom Replacement Windows-7-installation" target="_blank" title="Custom Replacement Windows 7 install">install Custom Replacement Windows 7</a>. </strong>They’re also in line with the specifications of many computers sold in recent years. Even many netbooks, which are typically underpowered, should have enough memory and horsepower to run <strong>Custom Replacement Windows 7. </strong>If you want to install a 64-bit version of <strong>Custom Replacement Windows 7, </strong>you’ll require at least 2 GB of memory and 20 GB of hard drive space, and a 64-bit microprocessor. But many <strong>Custom Replacement Windows XP</strong> computers won’t be able to execute the new software. <strong>Custom Replacement Windows XP</strong> minimum requirements are far less than <strong>Custom Replacement Windows 7</strong>. You can run <strong>Custom Replacement Windows XP</strong> with 233 MHz processor, 64 MB RAM and 1.5 GB of drive space. <br /> <br /> Part of what has made <strong>Custom Replacement Windows XP</strong> popular in netbooks is that the software’s modest <strong>requirements</strong> meant that manufacturers could save money by building computers with older, slower processors and less memory than on higher-end systems. In other words, even if your netbook is fairly new, it may not be able to run <strong>Custom Replacement Windows 7. </strong></p> <p><strong>Upgrade tips </strong></p> <ul> <li>The best way to start, with the <strong>Custom Replacement Windows 7 Upgrade </strong>download it from Internet. This free program from Microsoft will perform an realestate inspections of your computer and let you know if anything might cause you problems. After running the Advisor, you’ll see a report screen. </li> <li>It’s a good idea any time you upgrade your OS, it’s mandatory