Windows 11 KB5077241 Update Introduces BitLocker Improvements and Sysmon Tool

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1. 25.02.2026 09:51 1 articles · 3h ago

   Windows 11 KB5077241 Update Released with BitLocker Improvements and Sysmon Tool

   Microsoft released the KB5077241 optional cumulative update for Windows 11, featuring 29 changes, including BitLocker reliability enhancements, a new network speed test tool, and native System Monitor (Sysmon) functionality. The update also improves taskbar behavior, adds support for WebP images as desktop backgrounds, and introduces Remote Server Administration Tools (RSAT) for Windows 11 Arm64 devices. This preview update allows admins to test new features and improvements before they are generally available. The update is optional and does not include security fixes, focusing instead on quality improvements.

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   • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

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Information Snippets

• KB5077241 is a preview update released at the end of each month, allowing admins to test new features and improvements before general availability.

  First reported: 25.02.2026 09:51
  1 source, 1 article
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  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

• The update improves BitLocker reliability, preventing devices from freezing after entering the recovery key.

  First reported: 25.02.2026 09:51
  1 source, 1 article
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  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

• A built-in network speed test tool for Ethernet, Wi-Fi, and cellular connections is added to the Windows taskbar.

  First reported: 25.02.2026 09:51
  1 source, 1 article
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  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

• Native System Monitor (Sysmon) functionality is introduced but disabled by default.

  First reported: 25.02.2026 09:51
  1 source, 1 article
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  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

• Quick Machine Recovery (QMR) is automatically enabled on non-domain-joined Windows Professional devices not enrolled in enterprise endpoint management.

  First reported: 25.02.2026 09:51
  1 source, 1 article
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  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

• The update improves taskbar behavior, preventing all app windows from moving to the overflow area when there is not enough space.

  First reported: 25.02.2026 09:51
  1 source, 1 article
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  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

• Support for WebP images as desktop backgrounds is added.

  First reported: 25.02.2026 09:51
  1 source, 1 article
  Show sources

  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

• Remote Server Administration Tools (RSAT) are now supported on Windows 11 Arm64 devices.

  First reported: 25.02.2026 09:51
  1 source, 1 article
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  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

• The update improves the responsiveness of the Windows Update settings page.

  First reported: 25.02.2026 09:51
  1 source, 1 article
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  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51

• A redesigned Start menu and updated battery icons are gradually rolling out to more Windows devices.

  First reported: 25.02.2026 09:51
  1 source, 1 article
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  • Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool — www.bleepingcomputer.com — 25.02.2026 09:51