スマホ・アプリDid all your apps disappear after updating your iPhone? iOS 26 age limit change may be the cause | 6 ways to restoreAll apps disappeared after updating to iOS 26! The cause may be the automatic change in age restriction rating. We will explain six restoration methods and future preventive measures in an easy-to-understand manner.2026.03.04佐藤 理香
スマホ・アプリWhy can't I listen to radiko? Why do I get an error? 6 causes and solutions you can try now [iPhone/Android/PC]An easy-to-understand explanation of the 6 main reasons why you can't listen to the radiko app or errors occur, and how to deal with it for iPhone, Android, and PC. We will also introduce alternative methods in the event of a failure and how to tell if it's just you or a server failure.2026.03.03佐藤 理香
パソコン・ソフトIs it #N/A even though there is a value in VLOOKUP? 5 reasons why you can't see it and how to solve it with IFERROR/XLOOKUPAn easy-to-understand explanation for Excel beginners of 5 reasons why #N/A appears even though there is a value in VLOOKUP (invisible spaces, mismatched data types, incorrect search method settings, etc.) and how to solve them using IFERROR, IFNA, and XLOOKUP.2026.03.03中村 健太
パソコン・ソフトAre certain keys not responding on your laptop keyboard? 5 causes and how to deal with it yourself [Windows 11]We will explain in an easy-to-understand manner the 5 reasons why certain keys on a laptop keyboard do not respond (filter key, clogged dirt, driver problem, NumLock, physical failure) and how to deal with each in a Windows 11 environment.2026.03.027 min中村 健太
暮らし・家事Can't get rid of the black mold on the bathroom door rail/packing? Cleaning methods for different types of dirt and 5 habits to prevent recurrenceWe explain how to remove black mold, white crunchy dirt, and pink dirt from bathroom door rails and rubber gaskets by dirt type. We will also introduce the chlorine bleach compress method, citric acid pack procedure, and 5 preventive measures to prevent mold from growing again.2026.03.02鈴木 遥
仕事・副業Can I see through/disappear in Zoom's virtual background? 5 causes and solutions you can try nowExplains 5 reasons why you can be seen or disappear in Zoom's virtual background (lighting, color of clothes, PC performance, etc.) and solutions you can try right away. We'll also introduce tips on how to make it compatible with smartphones and look great even without a green screen.2026.03.02山田 結衣
AI・チャットボットEven if you ask AI, will it only give you a weak answer? Correct usage of ChatGPT, Perplexity, and Gemini in research [2026 edition]Explains the reason why only "weak answers" are returned even when searching with ChatGPT, Perplexity, and Gemini, and the correct use for each purpose. Perplexity for searches with citations, ChatGPT for deep digging and writing, and Gemini for Google collaboration. We will also introduce the limitations of the free version and tips for improving the quality of answers.2026.03.02高橋 湊
WebサービスIs WBC 2026 only available on Netflix? Summary of how to watch without losing money from registration to cancellation [Netflix for the first time]The 2026 WBC will be exclusively distributed on Netflix. For those using Netflix for the first time, we will explain every step of the way, from choosing a price plan, registering, watching TV, and canceling your subscription.2026.03.02佐藤 理香
パソコン・ソフトMouse cursor moves but you can't click? 6 causes and solutions you can try now [Windows 11]We will explain in an easy-to-understand manner the six reasons why the mouse cursor moves but clicks do not respond in Windows 11 (Explorer freezes, driver problems, click lock settings, control software interference, poor USB connection, corrupted system files) and possible solutions, including emergency workarounds that allow you to operate using only the keyboard.2026.03.01中村 健太
仕事・副業Can't change name on Zoom? How to change the display name before a meeting, during a meeting, and by smartphone, and 5 reasons why you can't change itAn easy-to-understand explanation of how to change the display name in a Zoom meeting before the meeting, during the meeting, on a PC, and on a smartphone. We have summarized 5 reasons why "Rename" cannot be pressed or is grayed out, solutions, and management methods on the host side.2026.03.01山田 結衣
スマホ・アプリIs your smartphone charging port broken? 6 causes of not being able to charge/poor contact and how to deal with it yourself [iPhone/Android]Introducing 6 reasons why your smartphone's charging port (USB terminal) may be broken and not be able to charge or have poor contact, as well as solutions you can try on your own before sending it in for repair. We will explain everything from dust cleaning to first aid with wireless charging, and repair costs for iPhone and Android.2026.03.01佐藤 理香
仕事・副業Don't know what's inside an Excel macro? How to decipher predecessor VBA with ChatGPT/Copilot [2026 edition]I don't understand the contents of the Excel macro created by my predecessor... We will explain the procedure for pasting VBA code into ChatGPT or Microsoft Copilot and decoding it in Japanese, tips for verifying AI answers, and tips for handing over so that it does not become a black box again.2026.03.01山田 結衣
