Edge beta crashes after 5 seconds on some old versions of Windows 10

Got same reports for the final build from German blog reader. The problem appears to be caused by a new TPM-based feature. TPM key attestation via ncrypt.dll/tbs.dl seems to fail and crashed the UI. There is a workaround: Use a newer dll on affected machines. I've described the findings so far at this blog post:

https://borncity.com/win/2026/08/05/microsoft-edge-version-151-x-or-later-crashes-in-windows-10/

Experiencing the same thing on latest July 31 151 version. 300+ Win 10 LTSB 1607 devices affected. MSFT ticket raised and crashdumps submitted

My *stable" v151 just installed is crashing like this on win10 22H2 ESU. I'm attempting a system restore to get back to 150 while writing this on my phone

The version pattern suggests an OS-support or servicing issue before a profile problem. RS1 (1607) and RS2 (1703) are below Edge’s supported Windows 10 SAC baseline; Microsoft lists SAC 1709 and later, plus specific Enterprise LTSC/LTSB releases. RS3 is 1709, so its edition and update level matter. TH1 working does not prove every TH1 edition is supported.

On each failing PC, run winver and record the edition, OS build, and latest cumulative update. Fully patch eligible LTSB/LTSC images; move ordinary SAC devices to a supported Windows release rather than treating a Beta rollback as a fix. On RS3, launch the Beta executable with --user-data-dir="%TEMP%\edge-test-profile". If it still closes, collect the Application Error event for msedge.exe, faulting module, Edge version, and crash ID from edge://crashes if Beta remains open long enough. Submit those diagnostics with Alt+Shift+I from Stable. This will distinguish an Edge 151 regression from an unsupported or unserviced OS.