Computer technician blog


General - General posts, notices and other information.
Viruses - News and articles related to viruses, will be posted in this section.
Windows - How-To guides for Windows users.
Mac - How-To guides for Mac users.

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Change the default web browser on Mac

How to change default web browser application on Mac computers?

The Safari application is the default web browser on all Apple products including Mac computers, such as iMac, iMac Pro, Mac mini, Mac pro, MacBook Pro, MacBook Air, MacBook, and also mobile devices such as iPhone, iPad, and iPod touch (with the mobile version of Safari). You may, however, not like the app interface or functionality and prefer alternative software such as Google Chrome, Mozilla Firefox, or Opera. This is common to those who have recently switched from Windows to Mac devices.

System Restore Error 0x80070091

System Restore Did Not Complete Successfully, Error 0x80070091. How To Fix It?

System Restore is a feature in Windows operating systems which allows Windows users to get back to a previous computer's state, to a restore point if one was created (automatically or manually). In Windows 10 this feature is disabled by default and users must to turn it on in order to use it if needed. In other words, you will not be able to use it if you keep it disabled, so it is always a good idea to have this feature enabled.

Force to quit frozen apps on Mac

Terminate the frozen and unresponsinve applications on Mac

Apple computers are a leader in terms of computer performance and stability. Your MacBook or iMac will usually operate for long periods of time without glitches or problems, however, Apple cannot control every aspect of their products. Some third-party applications might contain optimization and resource usage faults causing frozen apps or, in some rare cases, a freeze of the entire Mac system. Most Mac users will have experienced the spinning beach ball on their screens for at least a second, but this is clearly much more frustrating when the ball does not stop spinning and the application freezes and becomes unresponsive.

Esrv.exe Application Error 0xc0000142

How To Easily Fix Esrv.exe Application Error 0xc0000142 In Windows 10

Esrv.exe process is a part of Intel software like the Intel Driver Update utility. It is a process which usually should not cause any problems, however, many users reported that they have encountered an esrv.exe Application Error which informs users that the application was unable to start correctly and suggests us to click OK to close the application. There are many cases where closing the application does not help and the error keeps popping up anyway.

Windows Update Error Code 0x80070002 And 0x80070003

How To Fix Windows Update Error Codes 0x80070002 And 0x80070003 

Windows Update is a free service for Windows users which is provided by Microsoft on the second Tuesday of every month, or on other days as well if there are some urgent bugs or errors to fix. It is important to keep your Windows updated, mostly because of the security updates so that Windows users could stay protected online. However, these updates usually include various feature enhancements and drivers updates as well.

Mac USB ports not working, how to fix?

Mac computer's USB ports stopped working or not working at all, how to fix?

USB connection nowadays is one of few main connections, that used basically everywhere, starting from input devices, such as keyboard and mouse to external storage and output devices, such as printers or even speakers and/or headphones. While USB port is used for wide range of devices, inactive port might become a huge headache. However, first of all you should ensure the problem is within your Mac's USB ports, the easiest way would be to try few separate devices within same or all connectors.

Usage of Apple Hardware test and Apple Diagnostics on Mac?

How to launch and use Apple's built-in hardware diagnostic tools, such as Apple Hardware Test and Apple Diagnostics?

Apple computers are well known for their stability and performance, also the usage of hardware resources. A lot of people are stating, that Mac computers never crashes, however there always is a chance of hardware or software crash. In order to help their users, Apple included built-in diagnostic tools, that checks all computer's components and display the results and recommendations how to solve existing issues. This tool, that provides multiple diagnostic tests were named Apple Hardware Test on all Mac computers released until 2013, later they slightly changed the name and appearance, on all models released after 2013 it was called Apple diagnostics.

RAVBg64.exe Causing High CPU Usage

RAVBg64.exe (or ravbg64.exe) Process Is Causing High CPU Usage. How To Fix It?

It is normal for various different programs and processes to run in the system background and normally you would not even notice it, unless one of the programs or processes start to cause high CPU usage when it is not supposed to. If you are reading this, then most probably you have opened the Task Manager and noticed that a process called RAVBg64.exe (or ravbg64.exe) is causing way too high CPU usage and is slowing down your computer.


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