Windows 11 Field Guide

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Upgrade to Windows 11

Check whether your PC can run Windows 11, understand TPM 2.0 and Secure Boot, upgrade from Windows 10 and roll back if you need to.

Upgrade Upgrade Windows 10 to Windows 11: Free, Step-by-Step Guide Upgrade Windows 10 to Windows 11 through Windows Update or the Installation Assistant, keep your files, and know the end of support and ESU dates. October 14, 2026

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Upgrade When Windows 10 Extended Security Updates End: Your Options When do Windows 10 extended security updates end? The current consumer and business dates, what ESU covers, and how to move an eligible PC to Windows 11. October 14, 2026

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Upgrade Windows 11 Compatibility Check: Is Your PC Eligible in 2026? Run a Windows 11 compatibility check with PC Health Check, understand each failed requirement, fix TPM and Secure Boot, and plan before Windows 10 ESU ends. October 14, 2026

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Upgrade Windows 11 Enablement Package: How 25H2 and 26H2 Install What a Windows 11 enablement package is, why 25H2 and 26H2 install with one quick restart on 24H2, when you need a full upgrade instead, and how to get it. October 14, 2026

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Upgrade Windows 11 Feature Update: 26H2 Timing, Support and Install How Windows 11 feature updates work: yearly cadence, support periods, current 25H2 and 26H2 versions, how to install or delay one, and fixes if it fails. October 14, 2026

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Upgrade Windows 11 In-Place Upgrade: Keep Files, Apps and Settings How a Windows 11 in-place upgrade works: move from Windows 10 or repair Windows 11 with setup.exe while keeping files and apps, plus prep, choices and pitfalls. October 14, 2026

Upgrade PC Health Check App: Test Windows 11 Readiness and More The PC Health Check app shows if your PC can run Windows 11 and why not, plus battery, storage and startup info. How to get it and read the results. October 14, 2026

Upgrade Windows 11 Rollback to Windows 10: The 10-Day Go Back Option Windows 11 rollback to Windows 10 works for 10 days via Settings > System > Recovery > Go back. What it keeps, what it removes, and why to think twice. October 14, 2026

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Upgrade Windows 11 Upgrade Failed? Fix 0xC1900101 and Other Errors Windows 11 upgrade failed or rolled back? Read the error code, fix drivers, space and security software, find the cause with SetupDiag, then retry the upgrade. October 14, 2026

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Upgrade Windows 11 Upgrade Assistant: Requirements and Step-by-Step How to use the Windows 11 Installation Assistant to upgrade Windows 10: requirements, step-by-step use, timing, common errors and when to wait instead. October 14, 2026

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Upgrade Windows 11 Upgrade from Windows 7: Your Real Options in 2026 Can you upgrade Windows 7 to Windows 11? Why there is no direct path, how to check the hardware, rescue your files, and choose a clean install or a new PC. October 14, 2026

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Upgrade Windows 11 Upgrade from Windows 8.1: What Works in 2026 Windows 8.1 to Windows 11: why there is no direct upgrade, how to check if the PC qualifies, how to save your files, and whether to clean install or replace. October 14, 2026

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Upgrade Windows 11 Upgrade Keep Files: What Stays, What to Back Up Upgrade to Windows 11 and keep files: which options keep files, apps and settings, what can still go missing, how to back up first and find files afterwards. October 14, 2026

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Upgrade Windows 11 Upgrade Without TPM: Enable It or Plan Ahead Want a Windows 11 upgrade without TPM? Check whether your PC has a TPM that is just switched off, how to enable it, the risks of unsupported installs, and ESU. October 14, 2026

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Upgrade Windows 11 Upgrade Guide: Check, Prepare and Move Safely Windows 11 upgrade hub: check if your PC qualifies, fix TPM and Secure Boot, pick Windows Update or the Installation Assistant, and roll back within 10 days. October 14, 2026

Upgrade Windows 11 TPM Requirement: Check and Enable TPM 2.0 The Windows 11 TPM requirement explained: what TPM 2.0 does, how to check it with tpm.msc or Windows Security, and how to turn on fTPM or PTT in UEFI. October 13, 2026