Resolve app installation errors in Google Play Store
Try the following workarounds to fix the Google Play Store errors. Open the Settings menu on your device. Go to Apps or Application Manager. (This option might differ depending on your device.) Open the app details and tap the Force stop button. Tap the Clear cache button.
Protect yourself from tech support scams | Microsoft Support
At worst, they're trying to steal your personal or financial information; and if you allow them to remote into your computer to perform this "fix," they will often install malware, ransomware, or other unwanted programs that can steal your information or damage your data or device.
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Windows 10でデスクトップ プログラムをインストール、アンインストール、または更新できない場合、 プログラムのインストールとアンインストールのトラブルシューティング ツール は、レジストリ キーの破損や不完全なアンインストール データなどの一般的な問題を自動的に修正できます。 Windows プログラムに対しては、次の手順を実行します。 Microsoft Store から入手したアプリに問題がある場合は、「Microsoft Store の アプリに関する問題を解決 する」を参照してください。 トラブルシューティング ツールをダウンロードします。 まず、トラブルシューティング ツールをダウンロードする必要があります。
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また、Smart App Control がファイルに対して信頼できるクラウド評判判定を取得できない場合は、ブロックが発生する可能性があります。 このような場合、プロセスを完了するには、Smart App Control を一時的に無効にする必要があります。
Protect yourself from phishing | Microsoft Support
Here are some ways to recognize a phishing email: Urgent call to action or threats - Be suspicious of emails and Teams messages that claim you must click, call, or open an attachment immediately. Often, they'll claim you have to act now to claim a reward or avoid a penalty.
Troubleshoot problems with detecting and removing malware
By default, Windows automatically collects error information, but describing the error on the Feedback Hub app can help us address the error more efficiently. Run Windows Update to apply any fixes and ensure you have the latest components.
Avoid and report Microsoft technical support scams
Provides information for avoiding and reporting Microsoft technical support scams.
Smart App Control Frequently Asked Questions | Microsoft ...
If the app has a valid signature, Smart App Control will let it run. If the app is unsigned, or the signature is invalid, Smart App Control will consider it untrusted and block it for your protection.
Potentially unwanted apps are blocked by default
Potentially unwanted applications (PUA) are a category of software that can cause your device to run slowly, display unexpected ads, or at worst, install other software which may be more harmful or annoying. PUA isn’t malware, but it is software that you often don’t need and probably don’t want.
適用対象: Windows 上の Microsoft Defender
Protect your PC from potentially unwanted applications
When Windows Security detects a potentially unwanted app you'll get a notification encouraging you to take action on it. Click on the notification to go to the Virus & threat protection area of Windows Security, then click on the name of the PUA to select the action to take.