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In Windows Xp, you may install two operating schemes on the same hard disk of one computer. Whether you have two copies of Windows Xp, or two dissimilar operating systems, then you end up with dual boot machine when you restart your Windows Xp computer. Dual boot means, the system will give you a choice of two operating system. For example, if you have two Windows Xp copies A ans B, the prompt will offer you to choose A or B to boot from. Also, dual boot machine may be employed to have Windows Xp, and Linux O.S. installed on the same computer. In the case where you have two windows Xp copies on the same hard disk, you will experience a slow performance in your system. If you need to delete one Windows Xp copies, and leave only one, here is how you do it: When you restart your system, and you get a choice of two operating systems, you will have to choose the one you want to keep installed on your machine. Once the startup routine is done, and your computer is ready to receive tasks to carry out sure functions, you click on the “My Computer” icon and locate the hard disks, removable storage devices, and more. In the hard disk box you must see two drive icons, like “C”, “D”. If the copy you installed later need to be cancelled, it will have to reside on the “D” portion of the hard disk. This is because the “C” is where you initial copy of the Windows Xp resides, and it is the one you want to keep installed as the only copy on your computer. The way you will have to get rid of the “D” copy is to format the “D” portion of the hard disk. just right click it, and choose format. This will delete the Windows Xp copy you don’t need. In summary, you may have two operating schemes installed on your windows Xp machine, which will offer a choice of loading one of two operating systems. The good thing is that you may cancel one, and leave the other, and your computer keeps running.
336 of 353 people found the following review helpful. That being said, is Snow Leopard an essential upgrade? No, not exactly. THE DIFFERENCE IS NOT THAT DRASTIC EXPECTATIONS EXPERIENCE Additionally, while I personally upgraded from Leopard to Snow Leopard, it is nice to know that even if you weren’t using OS 10.5 (Leopard) and were still on OS 10.4 (Tiger), you can upgrade directly to OS 10.6 (Snow Leopard). LAST THOUGHTS 231 of 263 people found the following review helpful. So what do you get with Snow Leopard? The answer is largely performance boosts, although many of those are not really applicable (yet) since few (virtually none) third party applications use the performance gains offered by Snow Leopard. Similar to Windows 7s ability to load share between CPU and GPU, many of the changes in Snow Leopard will take several years for developers to really start to use and write programs for. Relying on 64-bit architecture through the entire OS, Snow Leopard is essentially an upgrade for the future: as developers write programs that take advantage of the new, higher ceiling, end users like you and I will benefit. For now, most of the performance increases are only applicable to Apple’s own software. However, that’s not to say these aren’t nice or useful, and in some cases very impressive: 1) Opening large photos is faster in preview mode 2) Quicktime uses significantly less CPU on all Macs regardless of generation. Older Macs benefit the most with as much as 40% performance gains. 3) Time Machine backups take about 20% less time 4) Snow Leopard itself installs faster than Leopard 5) Boot times are faster with Snow Leopard by 5-10%; Shut down times are slightly faster as well. 6) File compression is also faster by 10-15% (These are somewhat simplified. If you want the exact numbers you can find them online: Google “Snow Leopard Performance”) Of all of these, the performance increases afforded to older first generation Macbooks are the most significant. Breathing new life into older hardware isn’t easy, especially not significant improvements. Snow Leopard manages to do just that and make even slower 1.6ghz MacBooks that much more useful. Installation itself is a SNAP (did I mention it takes less time than Leopard?). I’ve already upgraded a MacBook and MacBook Pro, and installation was simple, fast, and easy. I plan to install Snow Leopard on another older Macbook later in the week and will upgrade this review once I have. The few new visual tweaks are nice, but not the reason to upgrade. Better stacks is useful, as is the quickness of Finder, but overall I don’t find myself blown away by the upgrade. This isn’t an entirely new OS with a fantastic array of improvements, aside from the welcome and useful performance increases. That said, if you are a power user or just observant, you WILL NOTICE the speed increase, especially in Finder. I used to prefer Google Desktop search on PCs to Finder, but this upgrade has swayed me to prefer Finder. *****UPDATE September 2nd 2009***** A few other changes of minor importance but sometimes great usefulness: 1) Air Port now shows all available wireless networks and their relative signal strength, something Windows has done going back to XP, but that for some strange reason has been absent from OSX 10.X until now. Now when you turn on the Air Port you get a drop down to select which wireless signal you want as well as signal strength. 2) The date has been added to the desktop. This isn’t that amazing but it is useful. 3) I am LOVING the way stacks work now. They’re so much more intuitive to use and navigate, especially the ability to brows through directories directly from the stack itself. 4) Trash has the ability to restore a file to it’s original location right from the trash. This is a feature common to Windows that has been very strangely absent from Mac OS. It’s nice to see them catch this omission and correct it, but very odd it took this long to do it. A MAJOR complaint: 1) Seriously, no support for CS3? Why Apple, why? I don’t have the grand to drop on the newest version of CS. This is very, very frustrating, and makes me wish I could take back a star and downgrade this to a 4-star review. CS3 is still so widely used that I’m amazed Apple decided not to offer support for it. If you want to continue to receive support for CS3 or don’t have the money to upgrade to CS4, this could be a big deal and even a reason not to upgrade. A Minor complaint: 1) One of my time machine back-ups for a co-workers Mac was seemingly corrupted by the upgrade. Fortunately they didn’t have any old data they needed from that backup so I just made a new one with Snow Leopard that mounts just fine, but this is something to be aware of. If you have a critical time machine backup that you cannot afford to lose, I’d suggest making a backup of the entire drive (clone it) using SuperDuper! or something like it. *****End of update***** Snow Leopard will grow in usefulness as time passes. As I said earlier, once third party applications start to be written to take advantage of advancements in the OS, the performance overhead will become more and more useful. Expect to wait 6-12 months for that to happen, but in the mean time at least you’re enjoying speedier OS performance for an very inexpensive price! 118 of 134 people found the following review helpful. I really love the new Dock Expose, and how I can look at just one particular application in Expose instead of all the open windows in any given space. It makes finding things a lot easier. I also like the fact that you can now resize your icons in the finder. Dock scrolling (with magnification) and cover flow have been smoothed out greatly which makes it that much more attractive. Quicktime X is a pretty good movie recorder and the interface looks a lot better than previous version of Quicktime. Some other refinements are pretty nice as well. 64-bit support is amazing and I can see a difference in the apps that are now running in 64-bit (see the Activity Monitor for the apps that are running in 64-bit). Things just run smoother and faster. Now, as far as some drawbacks of the system, this first one is a major one: when redesigning Safari, they made Safari and its plugins and completely separate processes, supposedly to improve the stability of Safari. Perhaps it did this, but as a result, it eats up far more CPU power than the previous iteration. This can result in your system slowing down, and I’m running into serious issues with heating (when using Flash for example, it eats up almost 70% of the CPU and I’m running around 150F, which is somewhat dangerous). Also, there has been some lost backward compatibility with Snow Leopard, and for me, most notable with VMWare Fusion. I hope this is addressed soon. So would I consider this a necessary upgrade? Not really. If an upgrade is considered, it should be more for the speed boost than for new features, as most users won’t take advantage of many (if any) of the enhancements in the interface itself. However, the speed boost and freeing up of hard drive space are nice. Also, if you have programs that might have compatibility issues I’d probably recommend holding off and waiting for these to be resolved before upgrading. If you don’t have these issues, go ahead and upgrade, however, I believe you should do so with caution, and keep a copy of your Leopard install disk handy in case you need to revert should you run into any of the issues mentioned. |
The next-generation media technology, QuickTime X powers the audio and video experience in Snow Leopard. 
Great, but not essential…
Nice New Features, But Far From Perfect…