How to password protect a file or folder in Windows 10
When you get a new Windows 10 PC, or any version of Windows for that matter, there are a couple of things that you must do before you actually start…
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How to calculate average (mean) in Excel
The tutorial shows how to calculate mean in Excel for different data types by using AVERAGE or AVERAGEA formulas. You will also learn how to use the AVERAGEIF and AVERAGEIFS…
Excel’s top 12 most popular formulas with examples
Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories);…
How to calculate weighted average in Excel
The tutorial demonstrates two easy ways to calculate weighted average in Excel – by using the SUM or SUMPRODUCT function. In one of the previous articles, we discussed three essential…
Calculating moving average in Excel
In this short tutorial, you will learn how to quickly calculate a simple moving average in Excel, what functions to use to get moving average for the last N days,…
Ubuntu 20.04 LTS Set Up OpenVPN Server In 5 Minutes
Introduction OpenVPN is extremely popular and a full-featured SSL VPN (Virtual Private Network) software. It implements OSI layer 2 or 3 secure network extension using the SSL/TLS protocol. Like much…
Troubleshoot black screen or blank screen errors
Howtos Note This article is about black or blank screens—you can also troubleshoot a blue screen. We’ll look at some things that can cause a black or blank screen: Let’s…