You ONLY have to run the small EP update and possibly reboot, then you are 25H2. No need to run Setup, it's not a full build upgrade.
Yeah... It actually worked, but I needed to do something similar to an in-place repair, but selecting "Keep apps and user files" failed due to the errors listed above. I wouldn't want to do that because the ISO build is older than the one actually installed. So far, I know Windows seems to be working, but everything related to the Microsoft Store is crashing and obtain an error. I don't even know if it's a generic issue or if it's just me.
I never had any issue using an older ISO for in-place repair. Just the missing updates have to be re-applied after.
Hi there! I tried installing the fixed Windows 11 26H1 28020.1362 ISO (processed by FiX KiT v6.1f2) on VBox several times, but to no avail. The unfixed image installs fine.
Can you show a screenshot of what happens? What fix did you select, 1 or 2a/2b? did you select [A], etc... Change pix to ich9 in vbox and it boots and installs fine.
On 46% installing progress, issue message : Failed to install Windows server. {*} AIO 1 : UFWS + setup.cfg (2022/2025) proceed by default.(press 0)
For some reason 'Win11_28020.1362.251205_New_ FIXED 2025_12_22' VBox go to install Windows server, unfixed iso installing without Windows server??
Server is shown when option 1 is selected, UFWS + Server.cfg file. It should not have any affect on the install when it is started, if it would have been a problem it would have said: "server can't be installed on this hardware". Is not the original filename from UUP>ISO, what else is changed on this ISO. You don't tell what you are doing, no info, not even if it is an upgrade or a clean install from boot, you don't mention the used option to fix the iso, nothing. So to avoid it showing server in the titlebar re-fix the iso with option 2a and run 2b on the install you want to upgrade, if that is what you are trying to do. And again, as soon as the sku is selected the problems should not be fix related.
Preparing for 26H1/2 and the removed BypassNRO.cmd file: Code: ============================================================= Win 11 Boot & Upgrade FiX KiT v6.2b2 By Enthousiast @MDL... ============================================================= =================================== Fixes ==================================== [ 1 ] {*} AIO 1 : UFWS + setup.cfg (2022/2025) [ 2 ] { } AIO 2a: boot.wim Registry + winsetup.dll [ 3 ] { } AIO 2b: Current OS Registry =================================== Extras =================================== [ 6 ] {*} Replace ISO appraiserres.dll [ 7 ] {*} Integrate Diskpart & Apply Image script [ 8 ] {*} Add the generic EI.CFG file [ 9 ] {*} Optimize boot.wim [ A ] {*} Add 22621 Autorun.dll to 26100 (And higher) Boot.wim (Only use this option when the ISO is already updated!) ============================================================================== Select desired option(s), then press 0 to start the process: 0 ========================================================= Extracting Win 11 Source ISO... ========================================================= 7-Zip 21.07 (x86) : Copyright (c) 1999-2021 Igor Pavlov : 2021-12-26 Scanning the drive for archives: 1 file, 5754195968 bytes (5488 MiB) Extracting archive: E:\Crappy_Tools\Win_11_Boot_And_Upgrade_FiX_KiT_v6.1f2\Source_ISO\28000.1.251103-1709.BR_RELEASE_CLIENTMULTI_X64FRE_EN-US.ISO -- Path = E:\Crappy_Tools\Win_11_Boot_And_Upgrade_FiX_KiT_v6.1f2\Source_ISO\28000.1.251103-1709.BR_RELEASE_CLIENTMULTI_X64FRE_EN-US.ISO Type = Udf Physical Size = 5754195968 Comment = CCSA_X64FRE_EN-US_DV9 Cluster Size = 2048 Created = 2025-11-04 14:58:02 Everything is Ok Folders: 91 Files: 969 Size: 5748581420 Compressed: 5754195968 ============================================================= Copying the generic ei.cfg to the work dir... (If exists, the original file will be renamed to EI.CFG.Ori) ============================================================= 1 file(s) copied. ============================================================= Applying UFWS v1.4 to install.wim (Circumvent CPU-Disksize-RAM-TPM-Secureboot checks) ============================================================= ============================================================= Replacing setup.cfg for ISO dir & boot.wim (The original file will be renamed to setup.cfg.bak) ============================================================= 1 file(s) copied. Scanning "Files\setup2025.cfg" (loading as WIM path: "\sources\inf\setup.cfg")... 1936 bytes scanned (1 files, 0 directories) Updating "\sources\inf\setup.cfg" in WIM image Using LZX compression with 1 thread Archiving file data: 1936 bytes of 1936 bytes (100%) done ============================================================= Replacing Win11 appraiserres.dll with Win10 15063 (The original file will be renamed to appraiserres.dll.bak) ============================================================= 1 file(s) copied. ============================================================= Adding Murphy78 Diskpart and Apply Image Script 1.4.3 To Boot.wim... ============================================================= Scanning "Files\murphy78-DiskPart-Apply-v1.4.3\x64\" 10 MiB scanned (164 files, 15 directories) Using LZX compression with 16 threads Archiving file data: 10 MiB of 10 MiB (100%) done ============================================================= Adding 22621 Autorun.dll to 26100 (or later) boot.wim... ============================================================= Scanning "Files\autorun_22621.dll" (loading as WIM path: "\sources\autorun.dll")... 169 KiB scanned (1 files, 0 directories) Updating "\sources\autorun.dll" in WIM image Using LZX compression with 1 thread Archiving file data: 169 KiB of 169 KiB (100%) done Press any key to continue . . . ============================================================= Optimizing boot.wim... ============================================================= "WORK\Sources\boot.wim" original size: 517580 KiB Using LZX compression with 16 threads Archiving file data: 1312 MiB of 1312 MiB (100%) done "WORK\Sources\boot.wim" optimized size: 507250 KiB Space saved: 10329 KiB Press any key to continue . . . ============================================================= - Adding BypassNRO registry: ============================================================= Extracting file data: 65 MiB of 65 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 65 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 65 MiB of 65 MiB (100%) done Extracting file data: 61 MiB of 61 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 61 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 61 MiB of 61 MiB (100%) done Extracting file data: 66 MiB of 66 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 66 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 66 MiB of 66 MiB (100%) done Extracting file data: 62 MiB of 62 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 62 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 62 MiB of 62 MiB (100%) done Extracting file data: 65 MiB of 65 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 65 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 65 MiB of 65 MiB (100%) done Extracting file data: 66 MiB of 66 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 66 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 66 MiB of 66 MiB (100%) done Extracting file data: 66 MiB of 66 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 66 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 66 MiB of 66 MiB (100%) done Extracting file data: 66 MiB of 66 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 66 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 66 MiB of 66 MiB (100%) done Extracting file data: 66 MiB of 66 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 66 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 66 MiB of 66 MiB (100%) done Extracting file data: 66 MiB of 66 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 66 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 66 MiB of 66 MiB (100%) done Extracting file data: 66 MiB of 66 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 66 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 66 MiB of 66 MiB (100%) done Extracting file data: 66 MiB of 66 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 66 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 66 MiB of 66 MiB (100%) done Extracting file data: 62 MiB of 62 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 62 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 62 MiB of 62 MiB (100%) done Extracting file data: 62 MiB of 62 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 62 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 62 MiB of 62 MiB (100%) done Extracting file data: 62 MiB of 62 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 62 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 62 MiB of 62 MiB (100%) done Extracting file data: 62 MiB of 62 MiB (100%) done Done extracting files. The operation completed successfully. The operation completed successfully. The operation completed successfully. Scanning "TEMP\SOFTWARE" (loading as WIM path: "\Windows\System32\config\SOFTWARE")... 62 MiB scanned (1 files, 0 directories) Updating "\Windows\System32\config\SOFTWARE" in WIM image Using LZX compression with 16 threads Archiving file data: 62 MiB of 62 MiB (100%) done ========================================================= Creating x64 ISO... ========================================================= OSCDIMG 2.56 CD-ROM and DVD-ROM Premastering Utility Copyright (C) Microsoft, 1993-2012. All rights reserved. Licensed only for producing Microsoft authorized content. Scanning source tree (500 files in 47 directories) Scanning source tree complete (972 files in 92 directories) Computing directory information complete Image file is 6083346432 bytes (before optimization) Writing 972 files in 92 directories to 28000.1.251103-1709.BR_RELEASE_CLIENTMULTI_X64FRE_EN-US_FIXED_2025_12_24.ISO 100% complete Storage optimization saved 5 files, 28672 bytes (0% of image) After optimization, image file is 6085486592 bytes Space saved because of embedding, sparseness or optimization = 28672 Done. Press 9 or q to exit. Still not sure if it needs to be enabled by user selection or by default. EDIT: I just checked and the BypassNRO.cmd is not removed from 280x0 For now they only removed it from 26220.
When the SKU selection window or the setup window is passed then the tool did its job, any problem further in the process is not related to the tool. I can imagine that the cpu is not supported, all before intel core ix is not supported, same for the amd equivalent. If the CPU should be supported then you can try fix 2a for the ISO and 2b for the install you want to upgrade and next start setup.exe.
Thank you Enthousiast, the CPU is Xeon E5-2690, and it is not supported, but it does have SSE 4.2 capability, I thought that as long as those instructions were present that the Win 11 could be installed. Thank you again for the great tool and direction.
There is another requirement i can not remember now, but officially only 8th gen intel core i is supported but all cpu's who support sse4.2 and the other requirement will be able to run 11. EDIT: I remember the other one and it is POPCNT.
The Intel Xeon E5-2690 processor does support the POPCNT instruction as part of its SSE4.2 capabilities. Thanks again Enthousiast, you developed a great tool, I just lack the knowledge to utilize it completely
Then that is not the cause of the upgrade failing, if it would have been a not supported CPU it would have been reported during the system check for compatibility.