Rabu, 19 April 2017

How to Maintain the Performance of a PC

Overheating, due to excessive amounts of dust and debris built up around interior fans and components, is considered to be one of the most common causes of computer failure. In order to keep a computer cooling system functioning properly, the interior of the computer should be cleaned every three months. The amount of free space remaining on the system's main hard drive and the presence of spyware and other malicious software programs also can have a dramatic effect on a computer's performance. This article provides instructions for properly maintaining a PC to ensure optimum performance.

1
Maintain a Computer Operating System

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    Install an anti-virus security software and set up an automated maintenance schedule. Computers with Windows operating system often comes with pre-installed anti-virus software trial at the time of purchase. In situation where anti-virus has not been included, you may obtain antivirus software on the Internet at little or no cost to the consumer.
    • Perform an Internet search for "anti-virus protection" to retrieve a list of anti-virus programs.
    • Navigate to the preferred manufacturer's website, and follow the instructions for download and installation provided by the developer.
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    Back up your computer. Windows users can use the "System Restore" feature to schedule an automated, periodic back up of the entire system. Regularly backing up the system provides a perfect copy of your system functioning at optimum performance levels.
    • Open the Start menu, type "System Restore" into the search field located below the Programs menu, and press Enter on the keyboard.
    • Follow the instructions provided in the System Restore dialog box to schedule an automated full-system backup.
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    Use the Windows "Disk Cleanup" feature to remove "junk" files. The amount of free space remaining on the C drive can have a dramatic effect on a computer's performance. The Disk Cleanup feature automatically scans a computer hard drive to locate and remove temporary files and other files no longer in use. Removing these unneeded files increases the amount of free space available, which improves system performance.
    • Open My Computer from the Start menu. Right-click on the icon labeled "C Drive" or whichever hard drive contains your operating system files and select "Properties".
    • Click "Disk Cleanup", the Disk Cleanup dialog box will open on the desktop. The total amount of space gained will be displayed in the dialog box above the feature description.
    • Place a check inside each check box located in the "Files to delete:" menu box and click "OK." The process may take a few moments. You will receive a prompt when the cleaning process has completed.
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    Download the latest drivers, software and firmware updates from the computer's manufacturer to maintain optimum performance levels. These updates can be located and downloaded from the manufacturer's website, usually at no charge to the consumer.
    • Navigate to the manufacturer's website for each product (computer, operating system or other software programs) and follow the instructions provided for updating.

2
Perform Maintenance Cleaning on a Desktop, Notebook or Laptop Computer

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    Remove the tower door on a desktop computer. The method for removing the case door on a personal computer will vary widely from manufacturer to manufacturer. However, most are designed for easy removal. Many require no tools whatsoever, and those that do usually require only a Phillips or flat-head screwdriver.
    • Refer to the operating instructions included with the system at the time of purchase if the method for removing the tower door cannot be easily determined.
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    Remove the case panel on a laptop or notebook computer. The method for removing the case panel on a laptop computer varies only slightly from manufacturer to manufacturer. Most will require removing a series of Phillips-head screws from an easily identifiable panel located on the bottom of the device.
    • Set a cloth towel down on a flat surface and place the laptop down on it's top with the bottom facing upwards.
    • Remove the battery and use a screwdriver to remove the screws along the edge of the case panel.
    • Lift the panel out gently from the bottom of the device and set aside, along with the screws used to secure it in place. The case panel has been removed, exposing the interior components of the device.
    • Refer to the operating instructions included with the notebook or laptop if the method for removing the case panel is not readily apparent.
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    Clean the case interior. The tools needed to clean the case interior are a can of compressed air, cotton swabs and a pair of tweezers. Take care to avoid contact with components, cables and wires as much as possible during the cleaning process. Always maintain a distance of 4 inches (10 cm) between a can of compressed air and any computer components inside the computer case.
    • Remove any large particles or dust balls using a pair of tweezers. Avoid direct contact with components, cables and wires as much as possible.
    • Use a can of compressed air to blow out small particles from around each component inside the case. Be sure to maintain the recommended distance of 4 inches (10 cm) between the nozzle of the can and any part of the computer.
    • Blow out any dust or debris that collected around each fan installed, including the case fans, the power supply fan and the CPU fan. The CPU fan will typically be mounted on a heat-sink that sits on top of the CPU, often located on or near the middle of the computer's motherboard. Refer to the operating instructions that came with your computer for a detailed diagram of the location of the CPU fan.
    • Hold a cotton swab between the fan blades to prevent the fan from moving while using the compressed air. Once each of the fans and components have been thoroughly cleaned, use the compressed air to clean out the layer of dust and debris that accumulates along the bottom of the tower during the cleaning process.
    • Replace the case panel door.
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    Clean the exterior case of a laptop or notebook computer. Use compressed air to blow out any dust that has collected on or around the case panel or door and any of the ports located on the exterior of the case before.
    • Use a cotton swab, lightly soaked in rubbing alcohol, to remove any dirt or grime that has collected around the seams and spaces on the exterior of the case.
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    Clean a desktop computer keyboard.
    • Unplug the keyboard, flip it over in your hands, and shake it gently up-and-down and from side-to-side. Turn the keyboard right-side-up and use the compressed air to dislodge any particles remaining between the keyboard keys.
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    Clean a computer mouse.
    • Disconnect the mouse and clean the exterior using a paper towel, soaked lightly in rubbing alcohol.
    • Use a can of compressed air to blow out particles and debris from around the seams, edges, and spaces on the outside of the device.
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    Clean a Liquid Crystal Display (LCD) or "flat-panel" computer monitor.
    • Use a microfiber cloth towel, lightly dampened with plain water, to wipe dirt, dust and finger prints from the computer screen. Microfiber cloth towels can be purchased at any electronics or computer retailer.
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    Clean a Cathode Ray Tube (CRT) Monitor.
    • Apply a small amount of glass cleaner to a paper towel and wipe the glass screen gently to remove dirt, dust and finger prints.



Things You'll Need

  • A standard flat, or Phillips-head screwdriver
  • 1 to 2 cans of compressed air
  • Cotton swabs
  • 1 microfiber cloth towel
  • Rubbing alcohol
  • Paper towels
  • Glass cleaner
  • You may use the lemon to clean up your system

How to Magnify Your iOS Device with Accessibility Zooming

Everybody seems to know about Apple's pinch-zooming on the iPhone, iPod Touch, and iPad. However, pinch-zooming only works within certain applications and items - like photographs, websites, and maps. A lesser-known option - enabling zooming through iOS's accessibility menu - allows you to magnify the display anywhere, including in menus and non-pinch-zooming applications.

Part 1
Enabling Accessibility Zooming

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    Open to the Settings menu and click on General.
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    Select Accessibility.
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    Click on Zoom.
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    Slide the On/Off button to On.

Part 2
Using Accessibility Zooming

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    Double-tap with three fingers to zoom. This can be done anywhere and in any menu on the device.
    • This double-tap should jump the display into a more zoomed view of one part of the screen. It automatically zooms the display to 200% of its normal size[1].
  2. 2
    Use three fingers to move around the screen with a dragging motion. This enables you to see and access the other portions of the screen that are now out of the display view, since everything is bigger.
  3. 3
    Adjust the zoom when necessary. Using three fingers again, double-tap and hold your fingers on the display while sliding them up or down the screen to adjust the amount of magnification.
    • You can adjust the zoom between 100% and 500% of the typical display size[1].

Tips

  • To easily return your display to the regular size, double-tap with three fingers anywhere on the screen.
  • If you want to turn zooming on and off with ease, you can customize the Triple-Click Home option to control zooming.
    • In the Accessibility menu, scroll down and select "Triple-Click Home."
    • Select the Zoom option.
    • Now, when you click your Home button three times in quick succession, it will automatically change the Zoom option to "On" (regardless of whether you're in the Zoom menu or not). You can then use the three-finger double-tap gesture for zooming as normal.

How to Maintain and Protect a Secret Folder of Files

So, you want a completely invisible and highly protected folder of files, for example a private diary, or financial logs, or maybe some pictures you want to hold onto, but you don't want casual visitors to your computer or even nerds to be able to find or uncover this information? Read on.

Steps

  1. 1
    Navigate to C: or plug in an empty and unused USB flash drive and navigate to that drive.
  2. 2
    Make a folder named Temp inside C: or the USB drive. Do not protect it.
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    Make a new folder inside Temp. It does not matter what the name is, for now.
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    Right-click the folder you just created and select "Properties."
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    In the pop-up window, click the "Customize" tab.
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    Click "Change Icon."
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    Change the icon to one of the empty spaces. You may need to scroll to the right in the pop-up window.
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    Click "OK" in the icons pop-up, then "OK" again in the Properties pop-up.
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    You should still have the newly created folder selected. Press "F2" on the keyboard or right-click and select "Rename."
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    Hold down the "Alt" key (if on a laptop, hold down the "Fn" key as well) and type on the number pad 0160 or 255.
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    Put the files in this folder you want to protect.
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    Open your archive/compress software and drop all the files you want to protect on it.
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    Look for the security options. Set a password and use the strongest encryption possible. Set the option to obscure the file names as well.
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    Your software will archive the files. Delete the originals.
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    Your archive will not open, or show the names of the files inside, without the password.
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    Rename this to something cryptic like WIN32DIR.ZIP and move it to your Windows or Windows\System folder.

    Tips

    • Your password can be broken, but it will take a supercomputer a week or longer of devoting all of its resources to cracking it.
    • Don't forget your password. For a good reason, consult the previous tip.
    • Use a good password. A good password is at least 8 characters long, has both upper and lowercase letters, numbers, and symbols. A good password has no names or words that can be found in popular culture or any reference material. A good password must be a completely random string of characters.
    • To make any change (e.g. to a diary), you will have to provide the password and copy the file to an unsecure location. When you drop the updated file on the archive, you will have to put in the security options, including the password, again. Remember the password. It is entirely possible to have multiple passwords on multiple files.
    • Archive/compress programs are usually used to compress files (make them smaller), but you don't need to do this with just text files. Under the compression options, select None or Archive and it won't compress. Compression doesn't help you. All you want is the security.
    • Do not forget the password.
    • If your archive program doesn't have the ability to obscure filenames, after making your archive, re-open the archive program and drop the archive on it. Secure the archive the same way. Re-using the password, especially if it's a good one, is OK in this case. The filenames won't be obscured, but to see the filenames, the person will have to open the archive inside the archive, and without the password, they cannot do that.
    • Audio and video should not be used because they will make the archive big or huge and make it obvious it's not just a system file. The protection is just as good; in this case hiding it should mean burning the archive onto a CD or DVD and hiding the disc somewhere.
    • Always delete the original data as your archive program probably will not do that for you.

    Warnings

    • The password only protects the file from being opened. Absolutely nothing stops anybody from deleting it.
    • Remember if you reformat your computer to reinstall Windows, to back up your archive.
    • The authors of your archive program cannot open your archive if you forget your password. Only a supercomputer can open your password after a week or two of constant brute force attempts.
    • If you have government secrets or other highly illegal (as in more so than pirated music) files on your computer, while your archive will be safe, your hard drive can be made to give up the files you deleted after archiving them. There are ways to wipe/purify the drive, but they take a long time and would have to be done each time you edited or viewed the files.
    • Not being able to open your archive won't stop the government from prosecuting you if they have proof you received the data.
    • This is cool and fun to do if it's your private data.

    Things You'll Need

    • Files to hide. Text works the best. Images work OK as long as there's not a lot of them. Music and video formats don't work so well.
    • Archival and compression software. Most do the trick but they need security features. WinRAR is what I used to develop this trick, but you should use 7zip, which is freeware.
    • A good memory, or a way to store your passwords in a safe place (as in, another password archive or a password managing software)
     

How to Log In to a Terminal Server with Remote Desktop Client

This video demonstrates how to login to a terminal server with Windows Remote Desktop Client. The Remote Desktop Connection Client is used for logging into a virtual terminal server. Remote Desktop Connection has been included with all Windows versions since Windows XP. It is also available as a download for Mac OSX and Windows 2000 and earlier.

Steps

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    If you are running Windows Vista, Window 7, or Windows Server 2008, the Remote Desktop Connection can be found at ‘Start,’ ‘All Programs,’ ‘Accessories,’ ‘Remote Desktop Connection.
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    If you are using Windows XP or Windows Server 2003, it can be found at ‘Start,’ ‘All Programs,’ ‘Accessories,’ ‘Communications,’ ‘Remote Desktop Connection.
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    To log in to a Virtual Terminal Server, launch the Remote Desktop Connection.
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    In the computer field, enter the IP address of your Virtual Terminal Server. ( The IP address is emailed to the primary contact on the account after the server has been provisioned.)
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    Click on the ‘Options’ button.
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    Click on ‘Local Resources’ tab.
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    Make sure the ‘Printers’ option has a check mark then click on ‘More'.
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    Make sure the ‘Drives’ option has a check mark in it, then click on the ‘OK’ button.
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    Click on the ‘General’ tab then click on the ‘Save As’ button.
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    Select the desktop. In the file name field type in a friendly name then click on ‘Save.’
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    Click on the ‘Connect’ button to connect to your Virtual Terminal Server.
    • (You may receive a security warning when connecting to the Virtual Terminal Server for the first time. If this happens, put a check mark in the ‘Don’t ask again’ option and click on the ‘Connect’ button.)
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    Enter your username and password and click ‘OK.’ (For security purposes it is not recommended to put a check mark in the ‘Remember my credentials’ option. If a security message comes up, put a check mark in the ‘Don’t ask me again’ option and click on the ‘Yes’ button.)
    • After connecting to the Virtual Terminal Server, the connection bar will appear at the top of the screen. The connection bar can be used to minimize, maximize, or close the Remote Desktop Connection Client windows.
    • The connection bar can be permanently pinned to the top of the screen or unpinned to ‘Auto Hide.’ When not pinned at the top of the screen, the connection bar will automatically disappear and will reappear when the mouse is moved into the area at the top of the screen.
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    Clicking on the ‘X’ in the connection bar will close the Remote Desktop Connection but it will keep the session logged in and all open applications running on the Virtual Terminal Server.
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    To close the all applications and log out of the Virtual Terminal Server, use ‘Start’ ‘Log Off.

How to Login to a Terminal Server with Remote Desktop Client

How to Let People Use Your PC

You've all been there - your mum fires open your browser, and all that's up is pictures of scantily clad people engaging in naughty behaviour. Or you let your girlfriends sister check her email, and suddenly your Amazon suggestions are full of shoes and handbags. Or even worse, you return to Facebook to find you've posted terrible comments about yourself!How can this sort of embarrassing and annoying situation be avoided?

Steps

  1. 1
    Have a "guest account" on your PC, and use a password on your own account. When your guest says "Can I check my Facebook?" you simply switch user (or log out) and give them the guest account to play with. You'll find it under Control Panel -> Users / Accounts -> Enable Guest Account on Windows (all versions of Windows are slightly different, so click around!)
  2. 2
    Make the browser on your guest account forget where it's been when it's closed. On Firefox, it's Preferences -> Privacy -> "Firefox will" -> "not remember". Check the "don't track" box, while you're there.
  3. 3
    If you can't log out or switch user sometimes, have a spare browser handy. If you prefer Firefox, install Chrome for your guests, and vice versa. When your mum wants to check her Gmail, simply start your spare browser and leave it to her! Leave the link to your guest browser prominently on the desktop or in the task bar in case your PC is hijacked when you're out of the room.

Tips

  • Set your guest browser on your account to forget history and not track, like your guest account
  • Keep your own history clean and use private browsing (Ctrl+Shift+P on Firefox) when you can.
  • Ctrl + Alt + L will lock the screen while you're out of the room - if there's a password on your account, your mates can't "just check their email" while you're not looking.
  • If you have one mate who's always on your PC, give them their own account. It will make them feel special, and they can Customize  it how they like :)

Warnings

  • This advice won't help against small children with sticky fingers, or cats who like to sit on the keyboard.
  • Go back into the guest account and periodically remove naughty pics, your friends' private email attachment docs and any malware.
  • If your friends aren't computer savvy, they're likely to click on anything on a website with a flashing link. Make sure your firewall and antivirus are up to date!

How to Live Video Chat on Snapchat

10 Second Summary

1. Open Snapchat.
2. Swipe right on the camera screen.
3. Tap a contact's name.
4. Tap the video camera button.
5. Tap Call if prompted.
6. Tap the video camera button again to hang up.

Steps

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    Open the Snapchat app. It's the icon that resembles a white ghost outlined on a yellow background.
    • If you aren't logged into Snapchat, tap Log In and enter your username (or email address) and password.
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    Swipe right on the camera screen. This will take you to the Chat page.
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    Tap a contact's name. Doing so will open your chat history with them.
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    Tap the video camera icon. It's at the bottom of the screen, to the right of the circular button.
    • If this is your first time video chatting with someone, tap Call on the warning about cellular data here.
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    Wait for your call to connect. In order accept your call, your contact must currently be using the Chat section of the Snapchat app. Once they accept your call, you'll be able to talk and view each other live.
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    Tap the video camera icon again to hang up. If your contact doesn't hang up, you'll still be able to see their side of the video chat--they just won't be able to see yours.

    Tips

    • If you're on the receiving end of a call in the Chat window, all you need to do is tap the video camera button.

    Warnings

    • If you can't get this to work, your Snapchat app may not be up to date.