Whatever the cause, there are a lot of ways to help speed up Windows and make your PC work better—even without upgrading your hardware. Here are some tips to help you optimize Windows Vista for faster performance.
Delete programs you never use
Many PC manufacturers pack their new computers with programs you didn’t order and might not want. These often include trial editions and limited edition versions of programs that software companies hope you will try, find useful, and then pay to upgrade to full versions or newer versions. If you decide you don’t want them, keeping the software on your computer might slow it down by using precious memory, disk space, and processing power.
It’s a good idea to uninstall all the programs you don’t plan to use. This should include both manufacturer-installed software and software you installed yourself but don’t want anymore—especially utility programs designed to help manage and tune your computer’s hardware and software. Utility programs such as virus scanners, disk cleaners, and backup tools often run automatically at startup, quietly chugging along in the background where you can’t see them. Many people have no idea they are even running.
Even if your PC is older, it might contain manufacturer-installed programs that you never noticed or have since forgotten about. It’s never too late to remove these and get rid of the clutter and wasted system resources. Maybe you thought you might use the software someday, but never did. Uninstall it and see if your PC runs faster.
For instructions, see Uninstall or change a program.
Limit how many programs load at startup
Many programs are designed to load automatically when Windows starts. Software manufacturers often set their programs to open in the background, where you can’t see them running, so they’ll open right away when you click their icons. That's helpful for programs you use a lot, but for programs you rarely or never use, this wastes precious memory and slows down the time it takes Windows to finish loading.
Decide for yourself if you want a program to load at startup.
But how can you tell what programs load automatically at startup? Sometimes this is obvious, because the program will add an icon to the notification area on the taskbar, where you can see it running. Look there and see if there are any programs running that you don’t want to load automatically. Position your mouse over each icon to see the program name. Be sure to click the Show hidden icons button so you don’t miss any icons.
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| The Show hidden icons button in the notification area |
Even after you check the notification area, you might still have missed some programs that load automatically at startup. You can find and disable them using Windows Defender.
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| The Software Explorer screen in Windows Defender shows which programs automatically start when you launch Windows |
If you’re unsure about whether a program should open automatically at startup, you can try disabling it, restarting your computer, and then using the program. If that causes any problems with the program, you can go back and re-enable it to start automatically.
For instructions how to use Windows Defender to check for programs that open automatically, see Stop a program from running automatically when Windows starts.
Defragment your hard drive
Fragmentation makes your hard disk do extra work that can slow down your computer. Disk Defragmenter rearranges fragmented data so your hard disk can work more efficiently. Disk Defragmenter runs on a schedule, but you can also defragment your hard disk manually.
For more information, see Improve performance by defragmenting your hard disk.
Clean up your hard disk
If you want to reduce the number of unnecessary files on your hard disk to free up disk space and help your computer run faster, use Disk Cleanup. It removes temporary files, empties the Recycle Bin, and removes a variety of system files and other items that you no longer need. For step-by-step instructions on how to do this, see Delete files using Disk Cleanup.
Run fewer programs at the same time
Sometimes changing your computing behavior can have a big impact on your PC's performance. If you’re the type of computer user who likes to keep eight programs and a dozen browser windows open at once—all while instant messaging your friends—don’t be surprised if your PC bogs down. Keeping a lot of e‑mail messages open can also use up memory.
If you find your PC slowing down, ask yourself if you really need to keep all your programs and windows open at once. Find a better way to remind yourself to reply to e‑mail messages than to keep all of them open.
Turn off visual effects
If Windows is running slowly, you can speed it up by disabling some of its visual effects. It comes down to appearance versus performance. Would you rather have Windows run faster or look prettier? If your PC is fast enough, you don’t have to make this tradeoff, but if your computer is just barely powerful enough for Windows Vista, it can be useful to scale back on the visual bells and whistles.
You can choose which visual effects to turn off, one by one, or you can let Windows choose a bunch for you. There are 20 visual effects you can control, such as the transparent glass look, the way menus open or close, and whether shadows are displayed.
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| The Performance Options dialog box lets you turn on or off up to 20 visual effects |
To adjust all visual effects for best performance:
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| | 1. | Open Performance Information and Tools by clicking the Start button  , clicking Control Panel, clicking System and Maintenance, and then clicking Performance Information and Tools. | | 2. | Click Adjust visual effects.  If you are prompted for an administrator password or confirmation, type the password or provide confirmation. | | 3. | Click the Visual Effects tab, click Adjust for best performance, and then click OK. (For a less drastic option, select Let Windows choose what’s best for my computer.) |
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Try restarting if there's a problem
This tip is simple. If your computer seems to be running slowly and closing all the currently running programs doesn't help, trying restarting your computer. Restarting can fix performance problems where the exact cause is hard to pinpoint.
Add more memory
This isn’t a guide to buying hardware that will speed up your computer. But no discussion of how make Windows run faster would be complete without mentioning that you should consider adding more memory to your PC.
If a computer running Windows Vista feels too slow, it’s usually because the PC doesn’t have enough memory. The most sure–fire way to speed it up is to add more.
Windows Vista can run on a PC with 512 megabytes (MB) of random access memory (RAM), but it runs better with 1 gigabyte (GB). For optimal performance, boost that to 2 GB or more.
If you're going to the trouble of opening up your PC case to add more memory, you might as well boost the total to at least 2 GB. Especially if you're the sort of person who keeps a dozen e‑mail messages, ten browser windows, and six other programs open at once—all while instant messaging.
Another option is to boost the amount of memory by using Windows ReadyBoost. This feature allows you to use the storage space on some removable media devices, such as USB flash drives, to speed up your computer. It’s easier to plug a flash drive into a USB port than to open your PC case and plug memory modules into its motherboard. For more information, see Using memory in your storage device to speed up your computer.
Check for viruses and spyware
If your PC is running slowly, one dreaded possibility is that it might be infected with a virus or spyware. This is not as common as the other problems, but it is something to consider. Before you worry too much, check your PC using antispyware and antivirus programs.
A common symptom of a virus is a much slower-than-normal computer performance. Other signs include unexpected messages that pop up on your PC, programs that start automatically, or the sound of your hard disk constantly working.
Spyware is a type of program that is installed, usually without your knowledge, to watch your activity on the Internet. You can check for spyware with Windows Defender or other anti-spyware programs. For more information, see How to tell if your computer is infected with spyware.
The best way to deal with viruses is to prevent them in the first place. Always run antivirus software and keep it up to date. Even if you take such precautions, however, it’s possible for your PC to become infected. For more information, see How can I tell if my computer has a virus?
Check your computer’s speed
If you try these tips and your computer is still too slow, you might need a new PC or some hardware upgrades, such as a new hard disk, faster video card, or more memory. There’s no need to guess the speed of your computer, however. Windows provides a way to check and rate your PC’s speed with a tool called the Windows Experience Index.
The Windows Experience Index rates your computer on five key components and gives you a number for each, as well as an overall base score. This base score is only as good as your worst-performing component sub-score.
Base scores currently range from 1 to 5.9. (There is no score yet of 6.0 or higher, although Microsoft plans to raise the ratings in the future as hardware improves.) If your PC is rated lower than 2 or 3, it might be time to consider a new PC, depending on what tasks you want to do with your computer.
For more information, see What is the Windows Experience Index?
Disable services you don’t need
This is the most technically advanced of all these tips. If you don’t want to mess with anything too advanced or complicated, you can skip this one.
Windows has more than 100 services running quietly in the background with names such as Network Access Protection Agent and Shell Hardware Detection. These typically launch when your computer is started and they run until your computer is shut down. Some secure Microsoft services cannot be disabled, but most others can be. Many software companies also install their own services, some of which you can disable to conserve memory and processor power.
You should not turn off a service unless you understand what it does and are confident you don’t need it. Explaining what the many services in Windows do is beyond the scope of this article, but there is plenty of information about this on various websites.
For an overview from Microsoft, download the Microsoft Word document on the Services in Windows Vista website.
Check for updates from the manufacturer
Have you visited the support website of your computer manufacturer to see if the company has released any updates for your specific model? Computer makers often issue software updates for programs they shipped with a PC, especially if the PC is relatively new.
You might be surprised how much information you can find by checking with the manufacturer. If other users are reporting the same problem you are having, the manufacturer might have already issued a fix, or at least provided information about the problem.
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