Microsoft Update の日

悪意のあるソフトウェアの削除ツール x64 - 2020 年 2 月 (KB890830)
Remove specific prevalent malware with Windows Malicious Software Removal Tool

2020-02 x64 ベース システム用 Windows 10 Version 1909 セキュリティ更新プログラム (Adobe Flash Player 対応) (KB4537759)
Security Update for Adobe Flash Player: February 11, 2020

2020-02 x64 ベース システム用 Windows 10 Version 1909 の累積更新プログラム (KB4532693)
February 11, 2020—KB4532693 (OS Builds 18362.657 and 18363.657)

If you are using Windows Update, the latest SSU (KB4538674) will be offered to you automatically.

Servicing stack update for Windows 10, version 1903 and 1909: February 11, 2020

再起動後「更新プログラムのチェック」でレガシ BIOS ブート機にも

Security Update for Windows 10 Version 1909 for x64-based Systems (KB4524244)
Security update for Windows 10, version 1607, 1703, 1709, 1803, 1809, and 1903: February 11, 2020

Adobe Flash Player
2/12 追記
Security Bulletin for Adobe Flash Player | APSB20-06 - Adobe Security Bulletin
Release Notes | Flash Player 32 AIR 32
Archived Flash Player versions
Uninstall Flash Player | Windows
Installation problems | Flash Player | Windows 7 and earlier
Flash Player issues | Windows 8
Flash Player issues | Windows 10 | Microsoft Edge

アンインストーラ uninstall_flash_player.exe の直接リンク

Windows 7 以前の IEFlash Player ActiveXコントロール インストーラ install_flash_player_ax.exe の直接リンク

Firefox 用 NPAPI Flash Player Plugin インストーラ install_flash_player.exe の直接リンク

Chromium ベースのブラウザ用 PPAPI Flash Player Plugin インストーラ install_flash_player_ppapi.exe の直接リンク

chrome://components は未更新

Google Chrome 80.0.3987.100 で更新

カスペルスキー インターネット セキュリティ (h) 未更新

Patch H
Patch H for Kaspersky Internet Security version was released on February 4, 2020.
In patch H:

  • We've further optimized the use of computer resources.
  • We've added limited compatibility with Windows 10 20H1.
  • We've added alternative color themes.
  • We've added a notification about software that can be used for spying on a user that is installed on a computer.
  • We've fixed the vulnerability that allowed skipping the certificate check.
  • We've fixed several minor issues, some of which have been detected with the help of our users.

To install the patch:

  • Run the database update of Kaspersky Internet Security. For instructions, see this article.
  • When the update completes, restart your computer.

To check if the patch was installed successfully, open the application and click Support in the lower-left corner. You will see the full version number of the application with letter h.

Firefox プラグインのトースト通知前に再起動要求しろよな orz