Featured image of post How to Fix GitHub Copilot Certificate Errors (UNABLE_TO_VERIFY_LEAF_SIGNATURE)

How to Fix GitHub Copilot Certificate Errors (UNABLE_TO_VERIFY_LEAF_SIGNATURE)

We explain the solution when GitHub Copilot becomes unusable due to certificate errors like 'unable to verify the first certificate'. We introduce specific steps involving changing ESET settings.

Featured image of post [For Beginners] Introduction to Vim: From Installation to Basic Startup, Shutdown, and Mode Explanations

[For Beginners] Introduction to Vim: From Installation to Basic Startup, Shutdown, and Mode Explanations

Explains the basic usage of Vim for beginners. Comprehensively covers the first steps, including the installation method in a Windows environment, startup and shutdown commands (such as save and force quit), and the difference between command mode and insert mode.

Featured image of post Why Icons Obtained with the LoadIcon Function Do Not Require DestroyIcon

Why Icons Obtained with the LoadIcon Function Do Not Require DestroyIcon

We explain the conditions under which DestroyIcon should or should not be called for icon resources obtained with LoadIcon or LoadImage in the Windows API. We have organized the correct specifications to prevent resource leaks.

Featured image of post Learn Generative AI! A Collection of Recommended Lecture Videos by University of Tokyo Professors

Learn Generative AI! A Collection of Recommended Lecture Videos by University of Tokyo Professors

A collection of lecture videos by University of Tokyo professors where you can deeply learn about trending generative AI. We introduce easy-to-understand and useful explanation videos given between 2023 and 2024 by leading AI researchers such as Professor Masayuki Nakao, Professor Kuniyoshi Sakai, and Professor Yutaka Matsuo.

Featured image of post How to Generate QR Codes in Command Prompt using curl Command

How to Generate QR Codes in Command Prompt using curl Command

We introduce how to generate and display text-based QR codes using the curl command in the Windows command prompt. Since it uses an external API (qrenco.de), we also explain precautions regarding the handling of personal information.

Featured image of post [Boost Work Efficiency] List of Useful Shortcut Keys in Microsoft Word

[Boost Work Efficiency] List of Useful Shortcut Keys in Microsoft Word

A list of useful shortcut keys that dramatically increase work efficiency in Microsoft Word. Introduces essential shortcuts frequently used in everyday document creation and editing, such as text formatting, copy & paste, search & replace, and save, clearly summarized in a table.

Featured image of post Auto-Refresh Web Pages in Edge! How to Use the Convenient Browser Extension 'Tab Auto Refresh'

Auto-Refresh Web Pages in Edge! How to Use the Convenient Browser Extension 'Tab Auto Refresh'

Explains how to use the browser extension 'Tab Auto Refresh', which can periodically auto-refresh web pages in Microsoft Edge. Introduces everything from the installation method and update interval settings to the stop procedure clearly with images.

Featured image of post List of Useful Shortcut Keys for Visual Studio [Boost Work Efficiency]

List of Useful Shortcut Keys for Visual Studio [Boost Work Efficiency]

Summarized a list of useful shortcut keys for Visual Studio (VS2022) that dramatically improve development efficiency. Carefully introduces essential shortcuts frequently used during programming, such as debugging, building, and bookmark operations.

Featured image of post What is the Birthday Paradox? Why the Probability of Shared Birthdays Exceeds 50% with 23 People

What is the Birthday Paradox? Why the Probability of Shared Birthdays Exceeds 50% with 23 People

If 23 people gather, is the probability of someone having the same birthday over 50%!? We explain the counterintuitive and fascinating phenomenon known as the 'Birthday Paradox' in an easy-to-understand way, using mathematical reasons and formulas. Let's experience the wonder of probability.

Featured image of post How to Use the Standard Windows 'Snipping Tool' and Methods for Screen Recording and Capture

How to Use the Standard Windows 'Snipping Tool' and Methods for Screen Recording and Capture

Explains the basic usage of the 'Snipping Tool', a screen capture tool built into Windows as standard. Clearly introduces everything from quick launch methods using shortcut keys to saving partial image crops and screen recording procedures for videos.

Featured image of post Lock Your Windows PC in 1 Second! How to Create and Use a Handy Shortcut

Lock Your Windows PC in 1 Second! How to Create and Use a Handy Shortcut

Clearly explains how to create a shortcut to lock your Windows computer with a single click, complete with images. Also introduces the method of locking instantly using the Win+L keys, useful as a security measure when leaving your desk.

Featured image of post How to Install CLI Text Editor nano on Windows and Set Environment Variables

How to Install CLI Text Editor nano on Windows and Set Environment Variables

We explain the steps to install the lightweight CLI text editor 'nano' on Windows and set environment variables so it can be used from the command prompt. It covers everything from downloading to PATH configuration and basic usage.

Featured image of post How to Fix 'Temporary failure resolving' Error during apt update in WSL

How to Fix 'Temporary failure resolving' Error during apt update in WSL

Explains how to resolve the 'Temporary failure resolving' error that occurs when running 'sudo apt update' in a WSL environment. Introduces steps to change DNS server settings and properly restore communication for the package manager.

Featured image of post How to Restore the Windows 11 Right-Click Menu to the Classic Version (Old Specification) [Registry Settings]

How to Restore the Windows 11 Right-Click Menu to the Classic Version (Old Specification) [Registry Settings]

Explains how to restore the new right-click menu (context menu) in Windows 11 to the classic Windows 10 version. Introduces simple steps using Registry Editor settings to always show the old style menu.

Featured image of post Launch Hidemaru Editor with a Single 'hide' Command! Handy Windows Setup Method

Launch Hidemaru Editor with a Single 'hide' Command! Handy Windows Setup Method

Explains how to quickly launch Hidemaru Editor in Windows 10/11 simply by typing 'hide' from 'Run' or the Command Prompt. A handy customization procedure using the Registry Editor's App Paths.

Featured image of post Fascinating Unsolved Math Problems: What are Perfect Numbers, Goldbach's Conjecture, and the Riemann Hypothesis?

Fascinating Unsolved Math Problems: What are Perfect Numbers, Goldbach's Conjecture, and the Riemann Hypothesis?

We explain fascinating unsolved math problems that remain unproven despite their simple premises. Are there infinitely many perfect numbers? We explore the mysterious problems that continue to puzzle mathematicians, such as Goldbach's conjecture and the difficult Riemann Hypothesis.