To speed up your Mac and Windows Pc You have to care about several things. i have included them billow. to use it increase PC speed..
1. Clean out your startup items
If you find yourself routinely twiddling your thumbs while your PC or Mac painstakingly boots itself up, maybe it’s because your system is trying to fire up a slew of programs at the same time. Fallow this instructions for better performance..
For Windows Pc: Click the Start menu, then select Programs (or All Programs in Windows 7), open the Startup folder, and then—as Becky suggest—delete mercilessly. (Don’t worry; you’re not deleting the programs themselves.) Note: if you see a program sitting in the Startup folder and you don’t know what it’s for, search on the Web to see what it does before hitting the “delete” button.
For Mac Pc: Open System Preferences under the Apple menu, click the Accounts icon, and then click the Login Items tab. You may find a variety of arcane programs and helper apps lurking inside (such as the mysterious iTunesHelper), but again—search before you zap an unknown program. (Disabling the iTunesHelper app, for example, will prevent iTunes from opening automatically when you connect an iPhone or iPod.)
2. Check for running apps in the Windows task bar
If You have Windows-based PC You See that little row of tiny icons in the bottom-right corner of the screen? Over the course of weeks, months, or years, the number of icons sitting in the Windows task bar has probably grown larger and larger—and many of those icons represent programs that are running in the background and consuming your PC’s limited resources.
Expand the task bar by clicking the little arrow on the side, then right-click each icon in succession. If you find, for example, that programs like Skype and iTunes are whirring away even when you’re not using them, right-click and select “Close”—or, better yet, open the program and uncheck any “launch at startup” settings in the Preferences or Options menu.
3. Turn off P2P applications
You have to turn off P2P applications Programs like BitTorrent and Skype. because they work their magic with “peer-to-peer” technology, meaning they leverage the combined computing power and bandwidth of every PC or Mac running their software for such uses as massive file transfers (in the case of BitTorrent) or high-quality, Net-based voice and video chat (for Skype).
But while sharing the P2P burden qualifies you a good Netizen, it can also put a significant dent in your system’s performance. If you’ve got programs like BitTorrent and Skype running all day, every day in the background, Becky suggests shutting them down until you really need them.
4. Root out viruses and malware
Nothing will slow your system down like a virus, a Trojan horse, Microsoft’s free Security Essentials suite, which will sweep your system for any unwanted, nefarious software and provide ongoing protection via regular updates. Just visit Microsoft’s Security Essentials website, download and install the software, and follow the instructions.
Anti-virus packages from the likes of Norton and McAfee are also available for Mac users, but there’s an ongoing debate about whether virus protection on the Mac is more trouble than it’s worth, given that malicious hackers are far more focused on Windows than they are on Mac OS X systems.
5. Clean up your hard drive
you have cluttering up your hard drive, the longer it takes for your system to access the data it needs—and that’s a great reason to regularly scan your folders and toss out files and programs you don’t need, or move them somewhere else to make more room.
buy an external hard drive for your music, photos, and videos, which can hog a surprisingly large amount of disk space (particularly when it comes to HD-quality TV shows and movies).
6. Turn off Mac Dashboard widgets
One of the more recent features in Mac OS X is the Dashboard—a layer of handy widgets that you can call up by clicking the Dashboard icon in the Dock.
Do yourself a favor and deactivate the widgets you don’t use all that often, Becky advises. Activate the Dashboard, then click the “plus” sign in the bottom-left corner of the screen; next, click the “X” in the upper-left corner of any widgets that you won’t miss.
7. Try a new browser
Firefox and Google’s Chrome Web browsers are popular—and powerful—alternatives to Internet Explorer, and don’t forget that there’s a Windows version of Apple’s speedy Safari browser.
Internet Explorer, fire up the Windows Update app under the Start Menu. For Firefox, select “Check for update” under the Help menu. Got Chrome? Select “About Google Chrome” under the wrench icon in the Windows version, or under the Chrome menu in Mac OS X. For Safari, launch “Apple Software Update” under the Start menu in Windows, or select Software Update under the Apple menu on the Mac.
make sure you have the latest version of Adobe’s Flash Player installed.
8. Defragment your hard drive
Defragmenting your hard drive in Windows . Select Computers from the Start menu, right-click on the icon that represents your hard drive, select Properties, click the Tools tab, and click the Defragment Now button. for better performance..
Into Mac OS X, there’s “little benefit” to manually fragmenting your hard drive, Apple says. But if you’re feeling the need to try it anyway, there are several third-party defragmenting utilities for the Mac, including iDefrag and Drive Genius; just make sure to back up your data before giving them a go.