Tutorials

The RPC server is unavailable

RPC server: what should you do if the RPC server is unavailable?

If the RPC server is unavailable, Windows will display the error code 0x800706BA. This means the network communication between the client and the server has been interrupted. The problem occurs fairly regularly in Windows 10. In this guide, we explain what the RPC server error message means and how you can fix it yourself without any expert network knowledge.

Apache Kafka tutorial

Kafka tutorial: getting started with Apache Kafka

The Scala-based streaming and messaging software Apache Kafka is one of the most popular solutions for efficiently storing and processing large data streams. In this Kafka tutorial, you will learn the requirements for using this open source software and how best to install and set up Apache Kafka.

Redis tutorial

Redis tutorial: an introduction to the database technology

Working with this in-memory database is not that difficult, but without an easily understandable Redis tutorial, one can quickly become discouraged. Here you will learn how to install the database, configure it, and enter data. We will also show you how to add, get, and delete data step by step.

Windows 7 Startup programs

How to customize the Windows 7 Startup folder simply and quickly

Access all of your most important programs right after Windows 7 starts: The Startup folder loads selected software immediately after the operating system starts. However, you might not be happy with the programs that are in the folder by default. That is why it makes sense to change your Startup programs in Windows 7. How do you do that?

Create your own app: Android app publication

Create your own app – Part 5.1: Upload an android app to Google Play

If you want to upload an app to the Google Play Store and are close to achieving that goal – your Android application is ready in the release version, and now set to find its way onto as many mobile devices as possible – there are still a few small steps left. Submitting an app to Google’s official app store may take some time. Among other things, you will also need to create accounts with various...

How to delete a Google Account

Deleting your Google Account: A step-by-step guide

Google’s services are very popular around the world. In addition to the well-known search engine, Gmail, Google Maps and the in-house browser Google Chrome are standard applications for many users. An active Google account is required to use these services and their features. But how can you delete your Google account if you no longer want to use the Google apps?

Deleting a Twitter account

Deleting your Twitter account: how to delete your account with the microblogging service

Reading interesting posts from friends, acquaintances, celebrities. Maybe even throwing in a tweet of your own here and there: The short news service, Twitter, is one of the most popular social media channels worldwide, thanks to its simple concept and wide reach. However, when it comes to data protection, the platform exhibits the typical weaknesses of the social media world – this is reason...

How to take a screenshot on Windows

Create a screenshot on Windows: How it works

With screenshots, you can show your colleagues and friends with just a few clicks what you’ve just seen on your screen. This can be an important part of your daily workload as well as something you use in your free time. But how do you actually create a screenshot? On Windows, the necessary resources are already built in. We explain to you how to use them correctly.

CPU Usage

High CPU usage: What does this mean?

CPU usage plays a crucial role with respect to your PC’s processing power and speed. If it is too high, then commands will not be processed as is ideal and all processes will run much slower. But when is high processor usage normal and when should countermeasures be utilized? And how does one even figure out the relevant values?

Excel WEEKNUM function

Excel's WEEKNUM: Deriving the week number from a date

In business, you often need to know the calendar week number. Excel’s WEEKNUM function ensures that you always have the correct week number right at your fingertips. The function even considers different counting methods, allowing it to adapt to international practices. WEEKNUM can also be combined with other functions.


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