USB problems

17 myths about computers

Most likely is that through the years, we have accumulated a lot of manners when we sit front to computer, such as avoid leaving near of the PC the cell phone, most of them heard from the mouth of dozens of colleagues and technicians, and have become true myths, which most of the time not have the slightest scientific handle.

If never we got to really think about some of the strange things that we do while using the computer, this is our chance of knowing that leads us to behave that way. Know which of these affirmations are myths and truths which will help us to think more effectively differently. The following are several situations where myths are very present in our behavior:

Myths about computers

Myth N°1: It is bad for the computer have magnets attached to the CPU?

False! There is no problem with the CPU, but if it happens with the monitor, it alters its colors. This always happens with CRT type monitors. In LCD monitors there is no such problem. Avoid, at all costs, electromagnetic devices placed close to monitors because colors can become permanently altered.

Myth N° 2: Pushing the tray of the CD / DVD with your finger to insert it into the CPU is harmful?

False! Nothing to do with reality. Nothing will happen to the CD / DVD if you push the tray with a normal force. It was developed exactly for that.

Myths about computers

Myth N° 3: Spilling water or coffee on the keyboard can damage it?

True! The metallic contacts that are under the keys can deteriorate. You can create a short circuit and stop working.

Myth N° 4: You need to have space between the monitor and the back wall?

False! The monitor is not a fridge. The atmosphere, in general, should be ventilated, but it is not essential that there is a great distance. It is much worse to have another monitor behind (as in many offices) because it can be a risk of interference.

Myth N° 5: If the PC remains powered all night, is necessary to turn on and off again to use it?

False! It is possible to keep on with no problem. Although it may seem otherwise, you feel you want to turn it off to rest, according to human logic. The hard disk lasts much longer if the power is on, Turn on and off the hard drive shorten its life. As a matter of economy of energy, should not leave the PC turned on several days, though, if we did not consider the factor of global warming, it would be much better for the PC that never turn off. They were created for that.Myths about computers


Myth N°6: Is it possible to damage the computer if we place a cell phone near the device?

False! No problem; at most, an interference caused by the phone on speaker.

Myth N°7: After turning off the computer it is better to wait a few seconds before turning it back on?

True! You should wait at least 10 seconds before turning it back on.

Myth N° 8: Move the CPU when the PC is turned on can damage the hard disk?

False! The centrifugal force that rotates the hard drive is so great that nothing happens when the CPU moves. Much less, if it is a notebook, because they were created for that.

Myth N°9: For the sake of the monitor, it is convenient to use a screensaver when not in use?

True! This is because the screensavers were designed to deteriorate the screen evenly. If the images are renew constantly, not spent in one place. Of course this is only necessary in CRT monitors. The LCD and LED monitors do not have this problem.

Myth N° 10: It is dangerous to look at the red light below the optical mouse?

True! While we will not becoming blind by doing so, the fact is that being a fairly strong light can damage the retina.

Myths about computers

Myth N° 11: In the notebooks, first must connect the power cord to the computer and only after to the electrical outlet?

False! It can be done in any order. Almost all modern laptops have anti short circuit protection and are multi-voltage, can be connected to voltages from 90 to 240 volts, being extremely stable.

Myth N° 12: When we turn off the computer, we must also turn off the monitor?

False! It does not matter. When disconnecting the CPU, the monitor is in a state that consumes very little power (about 1W, almost nothing) and suffers no wear. The decision ends up being a function of the economy, although consumption is really minimal.

Myth N° 13: The computer should never be exposed to the sun?

True! If the computer heated more than necessary and allowed, life tends to decrease. Therefore, it is never a good idea to install the PC near a window directly exposed to sunlight.

Myths about computers

Myth N° 14: If more than 80% of the hard disk is used, the PC becomes slower?

True! It is always a matter of percentage. Even though it has 20 Gb free, if less than 20% of disk capacity, the operation of the computer will be slower.

Myth N° 15: The desktop full of icons makes the PC run slower?

True! No matter whether they are icons of programs or files. What happens is that the video card PC constantly renews the information displayed on the monitor, how much more we have icons on the desktop, slower renewal.

Myth N° 16: Do not remove a USB flash drive or memory card without removing it safely.

True! You must select the ‘Safely Remove Hardware’ before removing it. Otherwise, you run the risk of damage the USB memory device.

Myths about computers

Myth N° 17: Turn off the PC directly with the button, without doing it by choice of operating system can damage the hard disk?

True! The hard drive can be damaged to be off while reading or writing. When turned off suddenly, the plates that cover the disk (which rotates up to 10,000 revolutions) descend upon him. When you select the ‘Off’ option, the entire system is prepared to stand and suspend all activities. Each piece will be in its proper place.

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What to do when we cannot eject a disk or USB memory

Undoubtedly Windows is currently the best operating system which can give life to a PC. Especially after the appearance of version 10. But despite all the advances in your code, the system can still become somewhat capricious, and simple tasks such as disconnecting a flash drive or a memory card can become a nightmare. This article looks an easy way to get the system back us control over the storage units and devices connected to the computer.

It is a deeply rooted custom that when we completed tasks of copy, move or delete files or documents on a memory card, flash drive or external disk, we click on the device icon with the right mouse button to select the “Eject” option, for that the system disconnects the device and can remove the storage unit from the port without any later inconvenience.

How unlock files

For those who do not know, this procedure ensures that Windows ends all tasks is doing with the device, i.e. the operations of read or write on the files it contains. If we remove the device from the port without notifying the system, it is likely to corruption or damage occurs in the data files that are stored on the flash drive or memory card.

However, occasionally remove a device can become really complicated, the operating system sometimes prevents us from proper extraction, presenting a notification window with the following: “Windows can’t stop your ‘Generic volume’ device because it is in use. Close any programs or windows that might be using the device, and then try again later”, instead of the usual “Safe to Remove Hardware”.

How unlock files

If we face this situation, from this point we have at our disposal an interesting amount of tips that we can be helpful to solve the problem.

Ejecting a flash drive, external drive or memory card safely

Overall, one of the first things that can solve our problems is check that any program or file is accessing the device. Close the program or file probably fix the problem.

In case we do not have open a document or file, we must try to close programs that have accessed the device, even if the software no longer access the files.

How unlock files

To cite an example, in the case that we have been working with a .doc document from an external storage unit, in addition to close and save the job, it is also a good idea to close Word and the instance of Windows Explorer with which we have access to files.

In the event that the above tricks do not work, we can always fall back button off the system and disconnect the USB cable from the device, which will always work, even if you lose a considerable time, especially when it comes to working hours.

In the event that this situation is repeated many times

It is also possible some scenarios the situation is repeated several times in the day, and interrupt our work with the resulting lack of productivity.

For these cases, nothing better than a small application called IOBit Unlocker, a free utility available for Windows 32 or 64 bits that allows us to release files and storage units with just one click.

How unlock files

To unlock storage units with this software, we move to the window “This PC”, select the removable drive we want to unlock and with the right mouse button select “IObit Unlocker” from the menu.

How unlock files

At this point a window with all the files and programs that are accessing the drive at that time will be presented.

To unlock the files, all you have to do is select the file or storage unit blocked and then clicking the “Unlock” button.

How unlock files

If you wish, you can download Unlocker from this link.

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How to enable or disable USB ports in Windows 7, Windows 8 and Windows 10

How many times has happened to us that when trying to copy a document or file from a PC in an Internet cafe or office, the USB ports on the computer are blocked? This happens because the system manager has blocked the use of this USB by disabling the detection of these ports.

Fortunately, the solution to this problem is simple, and if we keep to the instructions in this guide we will succeed quickly and easily.

Enable USB ports in Windows

Usually the system administrators, as they like to be called, used three different methods to prevent users from using USB ports for connecting devices. These are:

  • Alter the registry values ​​of the system for mass storage devices
  • Disabling the USB port from the Device Manager
  • Uninstalling USB mass storage devices drivers

Then the solution for each of these methods:

In the event that the registry values ​​of the system for mass storage devices have been altered:

If the system manager is a professional, probably has used a procedure that ensures permanently disable ports.

Enable USB ports in Windows

This disable has been carried out through Regedit, the Windows System Registry tool.

  1. To fix this, we move to the Start menu, then write Regedit and press Enter.
  2. When the Editor is run, go to the following key:


  1. We move to the right pane, select “Start” and change the value to 3. Consider that 4 is the value that will disable ports.

Enable USB ports in Windows

  1. We click on “OK”. This will re-enable the USB ports and allow us to reuse devices.

In the event that the USB ports have been disabled from the Device Manager:

In the event that we cannot yet use the ports then it is time to observe what happens in the Device Manager.

We observe if the icons of different types of devices have turned off, and if so, click on the disabled devices with the right mouse button pressed on the “Enable” option.

Enable USB ports in Windows

In case you have uninstalled the drivers for the USB mass storage devices:

If drivers for USB mass storage devices were uninstalled, install the drivers again it is a simple way to solve the problem. If this is the problem, then.

  1. Insert the device into the USB port.
  2. Wait for the system to recognize the device and install the appropriate drivers.