Optimize Windows 7

No matter how fast or shiny computers might be when they're new, they all seem to get slower over time. That state-of-the-art PC you bought last year might not feel like such a screamer after you install a dozen programs, load it with antispyware and antivirus tools, and download untold amounts of junk from the Internet. The slowdown might happen so gradually that you hardly notice it, until one day you're trying to open a program or file and wonder, "What happened to my poor PC?"

Whatever the cause, there are lots 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 7 for faster performance.

Try the Performance Troubleshooter

The first thing that you can try is the Performance troubleshooter, which can automatically find and fix problems. The Performance troubleshooter checks issues that might slow down your computer's performance, such as how many users are currently logged on to the computer and whether multiple programs are running at the same time.

Open the Performance troubleshooter by clicking the Start button , and then clicking Control Panel. In the search box, type troubleshooter, and then click Troubleshooting. Under System and Security, click Check for performance issues.

Delete Programs You Never Use

Many PC manufacturers pack 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'll 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 any more—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're 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 Run at Startup

Many programs are designed to start 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 starting up.

Decide for yourself if you want a program to run at startup.

But how can you tell what programs run automatically at startup? Sometimes this is obvious, because the program adds an icon to the notification area on the taskbar, where you can see it running. Look there to see if there are any programs running that you don’t want to start automatically. Point to each icon to see the program name. Be sure to click the Show hidden icons button so you don't miss any icons.


The Show Hidden Icons Button in the Notification Area

Even after you check the notification area, you might still miss some programs that run automatically at startup. AutoRuns for Windows, a free tool that you can download from the Microsoft website, shows you all of the programs and processes that run when you start Windows. You can stop a program from running automatically when Windows starts by opening the AutoRuns for Windows program, and then by clearing the check box next to the name of the program you want to stop. AutoRuns for Windows is designed for advanced users.

Note:

Some people prefer to manage which programs run at startup using the System Configuration tool. For more information, see Start System Configuration.

Defragment Your Hard Disk

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

Unnecessary files on your hard disk take up disk space and can slow down your computer. Disk Cleanup 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 sending instant messages to 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 rather than keeping all of them open.

Make sure you're only running one antivirus program. Running more than one antivirus program can also slow down your computer. Fortunately, if you're running more than one antivirus program, Action Center notifies you and can help you fix the problem.

For more information, see What is Action Center?

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 7, 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 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.

To adjust all visual effects for best performance:

1. Open Performance Information and Tools by clicking the Start button , and then clicking Control Panel. In the search box, type Performance Information and Tools, and then, in the list of results, click Performance Information and Tools.

2. Click Adjust visual effects. If you're 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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Restart regularly

This tip is simple. Restart your PC at least once a week, especially if you use it a lot. Restarting a PC is a good way to clear out its memory and ensure that any errant processes and services that started running get shut down.

Restarting closes all the software running on your PC—not only the programs you see running on the taskbar, but also dozens of services that might have been started by various programs and never stopped. Restarting can fix mysterious performance problems when the exact cause is hard to pinpoint.

If you keep so many programs, e mail messages, and websites open that you think restarting is a hassle, that's probably a sign you should restart your PC. The more things you have open and the longer you keep them running, the greater the chances your PC will bog down and eventually run low on memory.

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Add more memory

This isn't a guide to buying hardware that will speed up your computer. But no discussion of how to make Windows run faster would be complete without mentioning that you should consider adding more random access memory (RAM) to your PC.

If a computer running Windows 7 seems too slow, it's usually because the PC doesn't have enough RAM. The best way to speed it up is to add more.

Windows 7 can run on a PC with 1 gigabyte (GB) of RAM, but it runs better with 2 GB. For optimal performance, boost that to 3 GB or more.

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.

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Check for viruses and spyware

If your PC is running slowly, it's possible that it's infected with a virus or spyware. This is not as common as the other problems, but it's 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's installed, usually without your knowledge, to watch your activity on the Internet. You can check for spyware with Windows Defender or other antispyware 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?

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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 or faster video card. 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 subscore.

Base scores currently range from 1 to 7.9. 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?

Optimizing Video Quality for Windows XP

Introduction
Video playback is one of the most innovative and compelling features of Media Center PCs running Microsoft® Windows® XP Media Center Edition. Quality video playback is essential to sales and widespread adoption of Media Center PCs; reviewers and customers tend to perceive the quality of the overall system on the basis of video playback—if video playback is poor, they tend to perceive the quality of the entire Media Center PC as poor.
Video playback on Media Center PCs is complex and depends heavily on the quality of individual components that are involved in the video playback path. These components include the following:
  • TV tuner/capture/compressor device.
  • MPEG-2 video decompressor.
  • Graphics hardware, including graphics acceleration hardware and the display adapter.
  • Display monitors, including CRT/LCD/PDP/DLP computer displays and televisions.
This paper describes the role of each component in video playback, the factors that can contribute to poor video quality, and recommends configurations and tests to obtain the best possible video quality. The paper also lists troubleshooting tips that manufacturers can offer customers who purchase Media Center PCs. This paper is intended to help system manufacturers choose components and adjust settings for the best user experience with video on PCs running Windows XP Media Center Edition. The information in this paper can also be used to guide reviewers and users who are trying to optimize video quality on Media Center PCs.
This paper assumes that readers are familiar with television features of the Media Center user interface in Windows XP Media Center Edition. It also assumes that readers are familiar with the system requirements for Media Center PCs.
System requirements are listed in the Design Guide for Windows XP Media Center Edition. For availability of this document and sources of information about video signals and video processing, see the Resources and Tools section at the end of this paper.


TV/Tuner Capture/Compressor Devise
A TV tuner/capture/compressor device combines the separate video processing stages of tuning, digitization, and compression on a single PCI-compatible add-on board, a USB 2.0, or a 1394 hot-pluggable device. These products are often marketed as personal video recorder (PVR) devices for computers. The PVR device brings compressed broadcast television to the Media Center PC.

TV Tuner

The TV tuner receives a radio frequency (RF) signal from an antenna or cable feed. When the user enters a channel number in the Media Center PC, the TV tuner is the hardware that finds the corresponding RF signal.
Signals appearing as base-band composite video, S-video, or line-level audio from a set-top box, VCR, or DVD player bypass the TV tuner component. Thus, the tuner can be removed from the video processing chain to determine its affect on video quality.

How the TV Tuner Affects Video Quality

Problems with tuning can cause video artifacts, such as ghosting, video snow, and rolling bars or distorted colors. A poor tuner can also lead to corrupted vertical blanking interval (VBI) or closed-caption (CC) data and weak or garbled audio. The most common causes of video artifacts result from the following:
  • The user attached the coaxial cable to the wrong connector.
  • The tuner has poor sensitivity to attenuated signals.
  • The RF signal is weak or scrambled on some channels.
  • The TV tuner is set to the wrong input format (antenna/cable or NTSC/PAL).


Speed Up The Windows XP Boot Process

According to a report published by Microsoft several years ago, one of the most sought-after features for PC users over the years has been a lightning fast sytem start-up. Perhaps that is just the way we expect all our gadgets to work; punch the correct button and expect an instantaneous response. While the folks over at Redmond have since then taken tangible steps in making this a rality in the beta release of the upcoming Windows 7 operating system for now, their claim of getting boot time down to under 15 seconds is still wishful thinking at best.

In general, modern systems these days take anywhere between 30 seconds to a full minutes before they are able to run a program for the user. As a matter of fact, real world telemetry data at the Engineering Windows 7 blog suggests that an overwhelming majority of computer system (approximately 75 per cent of the total) running Windows Vista SP1 take up to a minute to boot before they are actually usable and ready to carry out tasks. Unsurprisingly, Windows XP based systems fare better in this regard, though only marginally.
Getting Started
Simply put, the main factors that determine boot time are the processes, programs and drivers that load up automatically each time you start your computer. So if you have countless processes and star-up times schedule to run whenever your computer boots, it will take more time for it to start up. Unfortunately, there is no definite way to highlight the exact cause of these slowdowns using the functionality built into Windows XP. However, there are a few sure-fire ways, apart from the hackneyed defragmenting your hard drive routine, that can help you speed up your boot process substantially and thereby cut down the time it takes for the desktop to appear whenever you turn on your computer. This is where BootVis comes in.


BootVis
Originally released by Microsoft (though no longer supported by them) for system designers and software developers to identify boot performance issues, BootVis (download) essentially is a "performance tracing and visualization tool" that can quickly determine how long a machine takes to boot up Windows XP; display all its findings graphically and then optimize the system's boot sequence, thus reducing the start-up time in the process.

A typical BootVis trace presents a complete time line of a computer's start-up sequence on easy to read graphs, displaying useful data, such as when each process starts and finishes during the entire boot up phase. This, for instance, can be used to precisely pinpoint where the slowdowns, if any, are occurring.

However, depending largely on your system configuration, you may or may not see a dramatic reduction in start-up time. To get a good estimate of the difference, record your original start-up time with stopwatch to obtain a reference reading before using BootVis.

Procedure
Assuming you have already downloaded and installed BootVis, the overall optimization procedure is as follows:

  1. Once you have run the BootVis executable, the first step involves running a boot trace. From the BootVis window, click 'File', followed by 'New' and 'Next Boot + Drivers Trace'. In the subsequent 'Trace Repetitions' window that appears, accept the default values for the number of repetitions to run. Note that the more times the utility runs, the more accurate the results will be, although the trace will take aneven longer time to complete. Secondly, ensure that the 'Restart automatically after tracing' option is selected before clicking OK. After a ten-second countdown, BootVis will reboot your system to perform the trace.
  2. Once the system restarts, wait a few seconds for BootVis to automatically launch and display a series of graphs on boot activity, CPU usage, driver delay, etcetera. You don't specifically need any knowledge of these graphs as the utility will automatically make the appropriate adjustments to your machine late. To proceed with the boot sequence optimization, click 'Trace', followed by 'Optimize System' and BootVis will display another ten-second countdown before rebooting.
  3. After rebooting, wait a few seconds for a BootVis prompt to appear, alerting you that it's reorganizing your boot files for faster start-up. Once the alert goes away (it normally takes a couple of minutes), you can use your computer as you would normally. Reboot again and see the difference.
  4. By default, Windows wait for a certain amount of time to display a list of available operating systems before loading. If you're not multi-booting and wish to remove this delay, right-click 'My Computer' and select 'Properties'. Click the 'Advanced' tab and, under the 'Startup and Recovery' section, click 'Settings'. In the "time to display list of operating systems" box, set the default value to 0 (zero) seconds and restart your computer.
  5. One of the most effective ways of reducing boot time is to keep all Windows services in check. Every time you start up, a boatload of components or 'services' get crammed into your PC's memory. However, not all of these are essential to the normal working of your system. To do away with the ones you don't need, use the Services applet in Windows XP. To access it, go to 'Run', type 'services.msc' and press Enter. For a comprehensive list of services that can be safely disabled in Windows XP SP3, visit Black Viper's website mentioned in The Site.
  6. Next you need to disable any unnecessary programs that automatically start at the beginning of each Windows session. To do so, click 'Run', type 'msconfig' and press Enter. Once the System Configuration Utility opens, click the Startup tab and uncheck the boxes on the left-hand side to keep items from loading. For instance, you can safely disable programs such as MSN or Yahoo Messenger, Real Player, etcetera. You will need to experiment to see what you can do without.
  7. Contrary to popular belief, Windows isn't the only culprit that can slow down the boot process. Your computer's hardware, too, can put everything on hold to quite some time. This is where tweaking the BIOS utility can prove to so beneficial. Tap the F1, F2 or Del key while booting (check you documentation) to enter the BIOS and change the bot device priority by setting your hard drive as the first boot device. Additionally, ensure that the Quick Power On Self Test (POST) option is enable and that the hard disk pre-delay is set to disabled. Also, if you don't have a secondary IDE disk drive in place, configure the BIOS to not look for one on the primary and secondary channels. For instance, when set to 'Auto', your PC pauses to identify each IDE device as it boots, thereby wasting a few seconds. Set this to 'None' where applicable.
While BootVis is a powerful tool with several optimization options, it can't work miracles. This is where you need to manually tweak your system by exercising good judgment and some common sense. Not only will these tips help shave a few seconds off your boot time, they will ultimately lead to a better user experience with Microsoft's aging beast.