When Windows XP came out in October 21, many people happily to get the newest operating system. The pro about the operating system; finally it has improved theme by it look and graphic because of the desktop navigation (looks different from it earlier operating system, Windows 200), it will detect any hardware as it will automatically search to find the driver from the internet (such as printer, flash drives, etc.) so the hardware will be able to use. The networks in Windows XP were easier because of the installation wizard to complete the use for the networking. There are some other things that I’d like to work in Windows XP, but sometimes the updates changes things and improve things in Windows XP, including updates for getting rid of viruses. The cons of Windows XP was also become more vulnerable and getting hit mostly by viruses and malware attacks (due getting updates, sometimes the update was annoying because they were forced to be downloaded and install, including have the computer to restart to finish the process). There was a few thing that was taking out of Windows XP when it was upgraded from 2000 too, such as having background changes disabled in documents (I miss those, they were cool). The infamous “Send” and “Don’t send” error report was popping up too often. Some software do have incompatibility when they was built to use for older operating system, sometimes you might have to look for the update when the automatic update can’t find them. Also, Microsoft set the system to be a 30 day trail without the product key (to prevent piracy, but sometimes paying the disc and product key can be a lot of money too). However, 32-bit are different from 64-bit, such as RAM usage. You can use as the amount of nearly 3.5 GB of RAM in 32-bit, but have to switch to 64-bit to use up to 4 GB of RAM. Some programs are irreconcilable for 64-bit, but later programmers would make it work with 64-bit. Otherwise, some people decide to stick with 32-bit for their use. The upgrading from/to XP was a great deal because of old files was in the Windows_Old folder. Unfortunately, to use the program that was previously installed in the old operating system are there, but not installed for the newest-migrated operating system to such as vista. Unfortunately to re-install the program on the operating system was a must to continue to use the program, but settings are back to default (some people customize the setting for themselves). When upgrading XP to the new operating system (like for Vista), Vista will use the validated key to have the ability to upgrade to Vista, then when Vista are installed, the key from Windows XP become invalidated or not being in use because of the newly installed key for Vista.