Useful Tips

Computer Usage and Regular Maintenance

Info in Progress . . .

– Connecting/Disconnecting a Device to/from an Electric Outle
When connecting a power cord into an electric outlet, we often see a spark during this action.  There is a small chance that a device connected to the power could receive a power surge as a result.  For this reason, if the power cord is not permanently attached to a device, we recommend to disconnect the cord from the device while connecting it to an electrical outlet, then to connect the device last.

For the same reason, when disconnection a device from an electrical outlet, this process should be done in reverse, disconnect the power cord from the device first and then from the electrical outlet.

– Screen

To clean the screen of a monitor, a laptop or other devices, do not use strong cleaning solutions.  Use a soft cloth and some mild solution meant for this purpose.  Other solutions that can be used are glass cleaner or cleaning vinegar.  Avoid soapy products as which will result with some streaks on the screen.  If some spots on the surface seem difficult to get rid of, use a small amount of cleaning solution on the cleaning cloth and scrub repeatedly adding just a bit of pressure until the spots are gone.  Adding too much pressure can permanently damage the screen.

– Keyboard

To clean the keyboard of a computer or a laptop, do not use solutions that can leave a buildup or coating around and under the keys.  First, use compressed air to dislodge any dirt or debris from under the keys.  Use a small brush and gently brush around each key to loosen any dirt.  Be careful not to pull the keys off as they are often difficult to reset in place.  A small amount of cleaning solution or alcohol can be spray on the brush to help clean more in depth (DO NOT spray any liquid or solution directly on the keyboard).  Then use compressed air again to remove any residue left and to dry off the solution if you have used any.

– Casing

As there are many different types of casing for computers and laptops such as metal, plastic, painted with a glossy and matte varnish, the type of cleaning solution used may vary.  Generally, mild solutions such as glass cleaner or cleaning vinegar are safe to use.  Plastic and metal casing are usually resistant to several types of cleansers but it is best to avoid strong solutions.  Painted casings are more vulnerable; a strong solution may remove a layer of varnish and even the paint itself if scrubbed heavily or repeatedly.  Avoid using solutions or soapy substances that can leave a coating on the surface.

– Fan

To clean the fan of a laptop or similar device from outside, use compressed air shoot air directly through the opening in the casing.  If a fan is noisy before this process, compare the change before and after shooting the air in.  If a fan is still noisy after this process, you will probably need to have an internal cleaning done.  If the fan produces a rattling sound, it likely needs to be replaced.  It is a good idea to clean the fan regularly at least externally.  This helps prevent a device from overheating.

For desktop computers, it is a good idea to use compressed air to clean regularly the fan of power supplies that are accessible from outside the casing.  Cooling fans facing outward on such devices are generally more open and push the air out from the whole casing. Consequently, if compressed air is used to clean this type fan, the dirt from it will be spread over the components inside the casing.  It is therefore better to occasionally open the casing and clean the fan with a small brush and then with compressed air.  As this process can generate a certain amount of dust coming out of the device, you may consider wearing a dust mask and it is advised to do this process outdoor or in a place where dust coming out would not be an issue.  

Unless a battery is no longer rechargeable or not installed, it is recommended to not leave a device plugged in with a charger all of the time in order to allow the battery to be discharged and recharged periodically.  Leaving the device plugged may reduce the expected life duration of a battery.  However, this may not be the case with every device.

Online Personal Protection

Hackers can gain control of your device and/or access your personal information, even the log-in details to some of your online registrations.  They gain access to your personal data such family pictures which they may steal those from you and then blackmail you into buying your data back.
You should try to the best of your ability to protect your personal information and data.  It is usually less costly to pay a professional to install the proper protection on any device than having to deal with the result of malware and/or being hacked.

As online purchasing has become the norm, we are more vulnerable than ever for being victims of fraudulent activities.  Therefore, you should avoid giving your banking and credit card information online if you do not trust the source.

Even companies that are trustworthy can get hacked, revealing your banking information which may be used to steal money from you or for buying goods with your credit card information.  It is a good practice to verify carefully and periodically your banking and credit card transactions.  If you find some suspicious activities, you should temporarily lock your account(s) online if possible and contact your bank or credit card company immediately.

Info in Progress . . .

Info in Progress . . .

Avoid clicking on links that you are not familiar with, or do not trust.  Advertisement links and such are not necessarily associated with a particular website and often unsafe to follow.  The more unfamiliar links you click on, the more likely you are to get malware installed on your device and even be hacked.

Clicking on unfamiliar links may result (often secretly) in the installation of malware on your device which you may have to hire a professional to remove.  Malware can be simply linked to advertisements, which can get annoying, but can lead to more hurtful result.

What to Consider When Choosing a Computer

When purchasing a computer, it is recommended to make a list of the software or programs you intend to use beforehand.  Then the next step is to do some research and find out what are the minimum spec requirements such as the operating system, processor (CPU), Storage (hard drive) and memory (RAM) for each program.  The most crucial spec is the processor as it is usually integrated into the main circuitry of a device and cannot be easily replaced.  It is generally easy to install a different operating system and to increase the amount of storage and memory.  It is a good idea to reach above the minimum requirements.  There are additional options that can improve the performance.

See also: Important Specs of a Computer on this page.

If the computer to be purchased will used for more than standard activities, it becomes difficult to make a choice based on a limited budget.  In such case you may have to compromise on the requirements.  At the very least you want to consider which specs are set permanently and which ones can be improved later on.

Important Specs of a Computer

Info in Progress . . .

Info in Progress . . .

Info in Progress . . .

Info in Progress . . .


Info in Progress . . .

Possible cause(s)/solution(s)

Info in Progress . . .

Possible issue(s)/solution(s)

Try using an external monitor

  • If external monitor display, there is a possible screen malfunction or connection problem
  • If external monitor doesn’t diplay, there may be an issue with the display card or the motherboard.

Please note: No display is also the result if there are no RAM sticks installed in the device or if using the wrong type.

Info in Progress . . .

Possible cause(s)/solution(s)

Fan may need to be cleaned or replaced.

Thermo paste over the processor/CPU may need to be re-applied.

Deteriorating hard drive may cause other hardware to overwork.

Info in Progress . . .

Possible cause(s)/solution(s)

Info in Progress . . .

The percentage of the remaining life of batteries, primarily those for laptops and tablets, can be measured when installed in a device with the use of software but may not be 100% accurate.  The time duration per charge of a battery can be determined while installed in a specific device, which usually varies from one device to another.  Older devices such as laptops and tablets usually require more power to operate and will cause a battery to discharge considerably faster than newer devices.

Keyboard Shortcuts/Hotkeys

Save = Control + ‘V’ keys

Save As = Control + Shift + ‘V’ keys

Info in Progress . . .

Select Section

Select All

Copy (selected content) = Control + ‘C’ keys
Keeps copied content in place

Cut (selected content) = Control + ‘X’ keys
Deletes copied content

Paste = Control + ‘V’ keys
Pastes copied or cut content

Task Manager:  Press “Control” and “Alt” + Delete Keys.  This function is particularly useful to exit a program or software that appears to have frozen.  Selecting the ‘Task Manager’ option will allow you to quit the program that froze or malfunctioned and/or any other program(s) that are currently running.  There, other functions such as “Sing Out” can be selected.

Power Button: There is sometime no other option to turn off a computer but to force the computer to shut down by pressing the power button for a few seconds, until the system turns off.

Some PC computers and laptops can rotate the screen when hotkeys are pressed. These are provided by the Intel graphics drivers, only enabled on some PCs.

  • Ctrl+Alt+Up Arrow: upright position
  • Ctrl+Alt+Right Arrow: 90 degrees
  • Ctrl+Alt+Down Arrow: upside down (180 degrees)
  • Ctrl+Alt+Left Arrow: 270 degrees

You can disable these hotkeys using the Hot Key Manager tool in the Intel Graphics Control Panel or the Intel Command Center on your PC.  To access it, you can launch it from the Start Menu or press Ctrl+Alt+F1 to open the Intel Command Center.  Click Options, and then Support (Four small squares) > Hot Key Manager.

If the Intel Graphics Settings tool doesn’t appear on your PC, you are not using Intel graphics. If the screen rotation shortcuts are don’t appear on the Hot Key Manager screen, they are not available on your PC.

Shortcut Keys

Special Character


€  (Euro currency)



¢  (Cent symbol)


£  (British Pound currency)


¥  (Japanese Yen currency)






°  (degree symbol)


±  (plus/minus symbol)



























For additional information, to give us feedback or share more useful tips, please contact us.

Shopping Cart

[email protected]

Typically replies within an hour

I will be back soon
Hey there 👋
How can I help you?
x  Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security