1. Use caution when you click links that you receive in messages from your friends on your social Web site. Treat links in messages on these sites as you would links in e-mail messages.
2. Know what you’ve posted about yourself. A common way that hackers break into financial or other accounts is by clicking the “Forgot your password?” link on the account login page. To break into your account, they search for the answers to your security questions, such as your birthday, home town, high school class, father’s middle name, on your social networking site. If the site allows, make up your own password questions, and don’t draw them from material anyone could find with a quick search.
3. Don’t trust that a message is really from who it says it’s from. Hackers can break into accounts and send messages that look like they’re from your friends, but aren’t. If you suspect that a message is fraudulent, use an alternate method to contact your friend to find out. This includes invitations to join new social networks.
4. To avoid giving away e-mail addresses of your friends, do not allow social networking services to scan your e-mail address book. When you join a new social network, you might receive an offer to enter your e-mail address and password to find out if your contacts are on the network. The site might use this information to send e-mail messages to everyone in your contact list or even everyone you’ve ever sent an e-mail message to with that e-mail address. Social networking sites should explain that they’re going to do this, but some do not.
5. Type the address of your social networking site directly into your browser or use your personal bookmarks. If you click a link to your site through e-mail or another Web site, you might be entering your account name and password into a fake site where your personal information could be stolen.
6. Be selective about who you accept as a friend on a social network. Identity thieves might create fake profiles in order to get information from you.
7. Choose your social network carefully. Evaluate the site that you plan to use and make sure you understand the privacy policy. Find out if the site monitors content that people post. You will be providing personal information to this Web site, so use the same criteria that you would to select a site where you enter your credit card.
8. Assume that everything you put on a social networking site is permanent. Even if you can delete your account, anyone on the Internet can easily print photos or text or save images and videos to a computer.
9. Be careful about installing extras on your site. Many social networking sites allow you to download third-party applications that let you do more with your personal page. Criminals sometimes use these applications to steal your personal information. To download and use third-party applications safely, take the same safety precautions that you take with any other program or file you download from the Web.
10. Think twice before you use social networking sites at work.
11. Talk to your kids about social networking. If you’re a parent of children who use social networking sites, see How to help your kids use social Web sites more safely.

1. Position your wireless router (or wireless access point) in a central location

When possible, place your wireless router in a central location in your home. If your wireless router is against an outside wall of your home, the signal will be weak on the other side of your home. Don’t worry if you can’t move your wireless router, because there are many other ways to improve your connection.

2. Move the router off the floor and away from walls and metal objects (such as metal file cabinets)

Metal, walls, and floors will interfere with your router’s wireless signals. The closer your router is to these obstructions, the more severe the interference, and the weaker your connection will be.

3. Replace your router’s antenna

The antennas supplied with your router are designed to be omni-directional, meaning they broadcast in all directions around the router. If your router is near an outside wall, half of the wireless signals will be sent outside your home, and much of your router’s power will be wasted. Most routers don’t allow you to increase the power output, but you can make better use of the power. Upgrade to a hi-gain antenna that focuses the wireless signals only one direction. You can aim the signal in the direction you need it most.

4. Replace your computer’s wireless network adapter

Wireless network signals must be sent both to and from your computer. Sometimes, your router can broadcast strongly enough to reach your computer, but your computer can’t send signals back to your router. To improve this, replace your laptop’s PC card-based wireless network adapter with a USB network adapter that uses an external antenna. In particular, consider the Hawking Hi-Gain Wireless USB network adapter, which adds an external, hi-gain antenna to your computer and can significantly improve your range.

Laptops with built-in wireless typically have excellent antennas and don’t need to have their network adapters upgraded.

5. Add a wireless repeater

Wireless repeaters extend your wireless network range without requiring you to add any wiring. Just place the wireless repeater halfway between your wireless access point and your computer, and you’ll get an instant boost to your wireless signal strength. Check out the wireless repeaters from ViewSonic, D-Link, Linksys, and Buffalo Technology.

6. Change your wireless channel

Wireless routers can broadcast on several different channels, similar to the way radio stations use different channels. In the United States and Canada, these channels are 1, 6, and 11. Just like you’ll sometimes hear interference on one radio station while another is perfectly clear, sometimes one wireless channel is clearer than others. Try changing your wireless router’s channel through your router’s configuration page to see if your signal strength improves. You don’t need to change your computer’s configuration, because it’ll automatically detect the new channel.

7. Reduce wireless interference

If you have cordless phones or other wireless electronics in your home, your computer might not be able to “hear” your router over the noise from the other wireless devices. To quiet the noise, avoid wireless electronics that use the 2.4GHz frequency. Instead, look for cordless phones that use the 5.8GHz or 900MHz frequencies.

8. Update your firmware or your network adapter driver

Router manufacturers regularly make free improvements to their routers. Sometimes, these improvements increase performance. To get the latest firmware updates for your router, visit your router manufacturer’s Web site.

Similarly, network adapter vendors occasionally update the software that Windows uses to communicate with your network adapter, known as the driver. These updates typically improve performance and reliability. To get the driver updates, do the following:

Windows 7 and Windows Vista

Windows XP

9. Pick equipment from a single vendor

While a Linksys router will work with a D-Link network adapter, you often get better performance if you pick a router and network adapter from the same vendor. Some vendors offer a performance boost of up to twice the performance when you choose their hardware: Linksys has the SpeedBooster technology, and D-Link has the 108G enhancement.

10. Upgrade 802.11b devices to 802.11g

802.11b is the most common type of wireless network, but 802.11g is about five times faster. 802.11g is backward-compatible with 802.11b, so you can still use any 802.11b equipment that you have. If you’re using 802.11b and you’re unhappy with the performance, consider replacing your router and network adapters with 802.11g-compatible equipment. If you’re buying new equipment, definitely choose 802.11g.

Wireless networks never reach the theoretical bandwidth limits. 802.11b networks typically get 2-5Mbps. 802.11g is usually in the 13-23Mbps range. Belkin’s Pre-N equipment has been measured at 37-42Mbps.

Create a preventive maintenance plan for your computer

When people notice their computer’s performance slowing, the most common reason is the hard disk. Your computer’s hard disk is a non-removable area that holds all the information available from your computer. Over time, hard disks begin to lose their ability to store data efficiently.

The Windows operating system provides three great tools to help keep your hard drive humming smoothly. These tools are Disk Cleanup, Disk Defragmenter, and Check Disk.

Ideally, you should run these tools on the following schedule.

Preventive Maintenance Activity	Recommended Frequency
Clean up the hard disk of temporary files	Weekly
Rearrange (defragment) the hard disk	Monthly
Check the hard disk for errors	Weekly

Of course, who has the time (or the desire) to keep up with this schedule? The best solution is to let Windows do all of the work.

The Windows Scheduler Task Wizard allows you to set up and automate these tasks, so you never have to worry about them again.

Clean up your hard disk (weekly)

Your computer amasses temporary files over time. These files can come from any number of sources—the Web being one of the largest offenders. After a while, these temporary files will slow down your computer.

About every week, you should run the Windows Disk Cleanup utility to clear your PC of these temporary files.

To set up Disk Cleanup to run automatically:

1. On the Start menu, click Control Panel.
2. In Control Panel, double-click Scheduled Tasks.
3. Double-click Add Scheduled Task. The Scheduled Task Wizard appears, as shown in Figure 1. Click Next.
   Figure 1: Accessing the Scheduled Task Wizard.
4. You’ll find a list of applications within the Scheduled Task Wizard. Scroll down this list until you find Disk Cleanup. Click on Disk Wizard to highlight it, as shown in Figure 2. Click Next.
   Figure 2: Selecting Disk Cleanup from the Scheduled Task Wizard.
5. Select a frequency for the Disk Cleanup to run. Running this task weekly is suggested, as shown in Figure 3. Click Next.
   Figure 3: Setting the frequency of Disk Cleanup.
6. Select the best day and time of the week for the Disk Cleanup to run. Pick a time when you know you won’t be using your computer, as shown in Figure 4. Click Next.
   Figure 4: Picking a day and time for Disk Cleanup to run.
7. Enter your user name and password (the one you use when you need to log on to your computer). Click Next.
   Figure 5: Associating a user with the Disk Cleanup scheduled task.

   Congratulations! You’ve successfully scheduled your Disk Cleanup to run, as confirmed by the page shown in Figure 6. Your PC will now automatically run Disk Cleanup on the date and time you scheduled—even if you’re logged off your computer.

   Click Finish to have Windows automate this task.

   Figure 6: Successfully scheduling Windows to run Disk Cleanup.

Rearrange your fragmented files (monthly)

Whenever a file becomes too large to store in a single location on your hard disk, your computer breaks that file into parts (or fragments). Don’t worry, though. Your computer keeps track of all these fragments, piecing them together whenever the file is accessed.

However, as fragmented files accumulate on your hard disk, your computer becomes gradually slower. This is because your computer has to go through all these fragmented files in order to piece the correct parts together again.

While there’s nothing you can do to prevent the fragmentation of files, Windows does have a utility (Disk Fragmenter) to help deal with this situation. Disk Fragmenter rearranges fragmented files, resulting in increased free space on your hard disk and quicker performance from your PC.

About every month, you should run the Windows Disk Defragmenter utility.

To set up Disk Defragmenter to run automatically:

1. On the Start menu, click Control Panel.
2. In Control Panel, double-click Scheduled Tasks.
3. Double-click Add Scheduled Task. The Scheduled Task Wizard appears. Click Next.
4. Disk Fragmenter isn’t available within the scroll-down list. You’ll need to select it manually. Click Browse. Then, navigate to windows\system32\defrag.exe. Select defrag.exe and click Open, as shown in Figure 7.
   Figure 7: Navigating to defrag.exe.
5. The Scheduled Task Wizard asks you to define the frequency for defrag.exe to run. Monthly is suggested. Click Next.
6. You’re then asked to select the time and day you wish this task to start. Pick a time you won’t likely be using your computer.If you selected a Monthly time frame, you’re able to define what months and what day of the month this task should run. Keep all months selected, and pick a day of the month that works for you, as shown in Figure 8.
7. Select a start time that differs from your other scheduled tasks. That way, you won’t have multiple tasks starting at exactly the same time. Click Next.
   Figure 8: Picking a time frame for Disk Defragmenter to run.
8. Enter your user name and password (the one you use when you need to log on to your computer). Click Next.
9. The next dialog box in the wizard states that you’ve successfully scheduled Disk Fragmenter to run on the time frame you’ve defined. Click Finish to have Windows automate this task.

Check your hard disk for errors (weekly)

Whenever some program you’re using crashes, your computer may create errors on your hard disk. These errors will eventually slow your computer to a crawl.

The good news is that Windows includes a Check Disk program. Check Disk corrects these types of errors from your hard disk—resulting in better PC performance.

About every week, you should run the Check Disk utility.

To set up Check Disk to run automatically:

1. On the Start menu, click Control Panel.
2. In Control Panel, double-click Scheduled Tasks.
3. Double-click Add Scheduled Task. The Scheduled Task Wizard appears. Click Next.
4. Check Disk isn’t available within the scroll-down list. You’ll need to select it manually. Click Browse. Then, navigate to windows\system32\chkdsk.exe. Select chkdsk.exe and click Open, as shown in Figure 9.
   Figure 9: Navigating to chkdsk.exe.
5. The Scheduled Task Wizard prompts you to define the frequency for chkdsk.exe to run. Select Weekly and click Next.
6. You’re then asked to select the time and day you wish this task to start. Select a time you won’t likely be using your computer. Make sure this start time differs from your other scheduled tasks. Avoid having your tasks start at the same time.
7. Enter your user name and password (the one you use when you need to log on to your computer). Disk Fragmenter will run as if you started it. Click Next.
8. A wizard page appears, stating that you’ve successfully scheduled Check Disk to run on the time frame you’ve defined. Click Finish to have Windows automate this task.

Let Windows do all the work
These automated tasks—while they seem simple enough—are the foundation on which your computer’s performance rests. Lucky for us, Windows can completely handle these tasks. You never have to worry about them. You just set up your maintenance tasks once, automate them, and let Windows take care of the rest.

Unfortunately, if you are using an Apple computer…well you already know, don’t you?