topic Re: Upgrade to Windows 11 fails in Endpoint

Upgrade to Windows 11 fails

CP-Shark — Mon, 05 Jan 2026 12:45:11 GMT

Hello guys,

we are currently upgrading from Windows 10 to Windows 11 by implaced upgrade.
On our clients we are running Harmony Endpoint from version E88.50 to E89.10.

I received the following message when trying to install Windows 11:

Found the following SK: sk181060 - Upgrade of Windows 10 or Windows 11 fails when FDE Bitlocker encrypted.

Any ideas? Removing FDE blade is serious not an option in our environment.

Cheers!

Re: Upgrade to Windows 11 fails

the_rock — Mon, 05 Jan 2026 12:56:01 GMT

Says it was fixed in one of previous versions, but if it still fails for you, probably best to open TAC case for it.

Re: Upgrade to Windows 11 fails

CP-Shark — Mon, 05 Jan 2026 13:04:57 GMT

Sorry to say that, but we cannot open a TAC everytime we are receiving an issue ... that takes way to long and should be fixed regarding to the SK

Re: Upgrade to Windows 11 fails

the_rock — Mon, 05 Jan 2026 13:06:41 GMT

I get it, but if you think about it logically, since SK says issue is fixed in specific version, which is not working for you, not sure what better option is there...anyway, lets see if someone else may have an idea.

Re: Upgrade to Windows 11 fails

Chris_Atkinson — Mon, 05 Jan 2026 13:43:34 GMT

Which version / build / edition of Windows 11 out of interest?

Re: Upgrade to Windows 11 fails

CP-Shark — Mon, 05 Jan 2026 13:50:15 GMT

Windows 11 (24H2 / 26100.4652)

Re: Upgrade to Windows 11 fails

Chris_Atkinson — Mon, 05 Jan 2026 14:06:54 GMT

Please contact TAC, if this issue matches there is a potential workaround that doesn't require the removal of FDE but cannot be shared here.

Re: Upgrade to Windows 11 fails

PhoneBoy — Mon, 05 Jan 2026 15:54:52 GMT

The process for upgrading to Windows 11 with FDE in place is here: https://support.checkpoint.com/results/sk/sk120667