暮らし・家事掃除機の回転ブラシが回らない・ヘッドが動かない？原因6つと自分でできる対処法【ダイソン・パナソニック・日立】掃除機の回転ブラシ（パワーブラシ）が急に回らなくなった・ヘッドが動かないときの原因と対処法を解説。髪の毛の絡まり、安全装置、スイッチの切り忘れなど自分で直せるケースから、ダイソン・パナソニック・日立・シャープのメーカー別チェックポイント、修理・買い替えの判断基準まで。2026.03.13ワカラン？編集部
お金・届出確定申告が間に合わない？期限後申告のペナルティと損しないための4つの対処法【2026年版】確定申告の期限に間に合わない場合のペナルティ（無申告加算税・延滞税）の仕組みと、追加の税金を最小限にする4つの対処法を解説。1ヶ月以内の申告で無申告加算税がゼロになる条件や延納制度の使い方も紹介します。2026.03.13ワカラン？編集部
AI・チャットボットChatGPTにPDFやExcelをアップロードしたのに読めない？ファイル解析が失敗する原因5つと正しい対処法ChatGPTにPDFやExcelファイルをアップロードしたのに読めない・解析できない原因5つ（スキャンPDF・サイズ超過・パスワード保護・複雑な構造・回数上限）と、それぞれの対処法をわかりやすく解説。ファイルを確実に読ませるコツも紹介します。2026.03.13ワカラン？編集部
暮らし・家事Is water leaking or dripping from your air conditioner? 6 causes and first aid measures you can take yourself/how to clean the drain hoseApproximately 80% of the reasons why water drips from the air conditioner are due to a clogged drain hose. We will explain in an easy-to-understand manner how to clean the drain hose yourself using a drain hose cleaner, as well as the criteria for determining when you should hire a professional.2026.03.13ワカラン？編集部
スマホ・アプリiPhone alarm not ringing/no sound? 7 causes and reliable solutions to prevent oversleeping [Compatible with iOS 26]Explains 7 reasons why the iPhone alarm does not ring or becomes silent (sound settings, volume, Bluetooth, screen gaze recognition, focus mode, standby, iOS bugs) and reliable solutions for iOS 26. We also introduce insurance techniques to prevent oversleeping.2026.03.13ワカラン？編集部
暮らし・家事Is your refrigerator smelly? Does the smell transfer to food? 5 causes and how to deodorize and clean the inside of the refrigerator [Tips to prevent odor transfer]Do you feel something smelly the moment you open the refrigerator, or do you notice that the smell is transferred to your food? We will explain 5 causes of odors, cleaning methods using baking soda and alcohol, and 5 habits to prevent odors from transferring.2026.03.13ワカラン？編集部
パソコン・ソフトDoes your PC become unstable or freeze repeatedly after Windows Update? How to identify and remove the causative update program [Windows 11]Explains how to identify and uninstall the update program that causes it when your PC freezes or becomes unstable after Windows Update. We have summarized the three removal steps: Settings screen, Command Prompt, and PowerShell, and what you should do after removal.2026.03.13ワカラン？編集部
スマホ・アプリCan't transfer eSIM when changing smartphone model? Correct transfer procedure for iPhone/Android and what to do if it failsExplaining the causes and solutions for the problem of not being able to transfer eSIM when changing smartphone models. We have summarized the steps for iPhone/Android eSIM quick transfer, 5 reasons for failure, and carrier-specific procedures for reissuing eSIM in an easy-to-understand manner.2026.03.13ワカラン？編集部
暮らし・家事Burnt and oil stains on IH stove won't come off? Cleaning methods for different types of dirt and 5 tips to avoid damaging the glass topExplains the correct cleaning method for each type of IH stove burnt, oil stains, and marks on the bottom of the pot. From how to use baking soda and cream cleanser, to 5 things you shouldn't do that will damage your glass top, to 30 seconds of preventive habits every day.2026.03.12ワカラン？編集部
お金・届出Even though I disposed of my broken computer, is it still in my ledger? Journal entry for “retirement” of fixed assets and operating procedures using accounting software [for sole proprietors]Even if you dispose of a broken or unusable computer, it will not automatically disappear from your books. We will explain the journal entry method for ``retirement'' of fixed assets and the specific operating procedures for freee and money forward.2026.03.127 minワカラン？編集部
AI・チャットボットI want to create presentation materials using AI, but do they end up looking clunky? Tips on how to properly use ChatGPT, Claude, and Gamma and create good-looking slides [2026 edition]Compare how to create presentation materials using four AI tools: ChatGPT, Claude, Gamma, and Genspark. Explains tips on how to use tools and prompts to solve the problem of "I made it with AI, but it's lame."2026.03.12ワカラン？編集部
暮らし・家事Does your washing machine suddenly stop working or stop due to an error? Self-check by symptom and criteria for determining repair/replacementIf your washing machine suddenly stops working or stops due to an error, we will explain a checklist for each symptom and what you can do to deal with it yourself. From the causes of drainage errors, unusual noises, and poor drainage, to the criteria for determining whether repair or replacement is better.2026.03.12ワカラン？編集部
