Liquid and air cooling of the computer
Now almost every house has a computer. These electronic machines consume kilowatts from our outlets. Of these, only a small part is spent directly on calculations, and the rest is…

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Monitor Calibration Devices
Monitor calibration devices allow both calibration and profiling. Most calibrators look like a computer mouse and attach to the display. Included with the device is a program that displays on…

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Sound card for computer
Sound card is an integral attribute of a multimedia computer. Previously, when PCs were ancient and terribly slow, you had to buy a sound card for a computer separately, select…

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camera

Solving a problem with a laptop webcam: no picture (black screen)

In our repair practice, sometimes there are “mystical” cases.

We have: a new HP laptop. The camera is visible in the device manager. It’s written in the camera’s properties that the device works fine, but the picture itself is not in Skype or in any other program.

We try to solve the problem in simple ways.
Reinstalling Windows, searching for driver updates on the official website did not produce results. If you check the camera through the popular verification site:

Screenshot of the browser on the webcammictest.com camera verification site
In Skype, we see a black screen and a rotating standby indicator. Continue reading

Computer power supply
In this article we will talk about one of the most important parts of a computer - the power supply, you will find out what important role it plays in…

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Avast! 2015 Free - worthy and free anti-virus protection
Today in the world practice of implementing solutions for protection against malware, the developments of the Czech company Avast Software are widely used. The number of active users of the…

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WinLock: Windows Blocker
WinLock is a family of computer viruses that interfere with the operation of a computer and require a cash payment in favor of the author. WinLock is a separate family…

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How to choose an external hard drive
An external hard drive is a very convenient medium for storing information, combining mobility and the ability to store large amounts of data. Currently, there are many models of these…

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