Hi Bruce, Thanks for your reply and suggestions! I unlocked the anti-virus software, delete all the files in AppData\Roaming folder and reinstalled it and it worked! Best, Jueli From: Ravel, Bruce via Ifeffit Sent: Tuesday, August 19, 2025 5:30 AM To: ifeffit@millenia.cars.aps.anl.gov Cc: Ravel, Bruce Subject: [Ifeffit] Re: Demeter won't start in Windows 11 The likeliest explanation is that your anti-virus software is blocking some part of the package. B On 8/18/25 19: 02, Shi, Jueli via Ifeffit wrote: > Hi Everyone, I’m experiencing an issue with Demeter (v0. 9. 26) after > upgrading from ZjQcmQRYFpfptBannerStart This Message Is From an External Sender This message came from outside your organization. ZjQcmQRYFpfptBannerEnd The likeliest explanation is that your anti-virus software is blocking some part of the package. B On 8/18/25 19:02, Shi, Jueli via Ifeffit wrote:

Hi Everyone, I’m experiencing an issue with Demeter (v0. 9. 26) after

upgrading from Windows 10 to Windows 11. On Windows 10 it worked without

problems, but now it won’t start properly. When I click the desktop icon

(or run it from

ZjQcmQRYFpfptBannerStart

This Message Is From an External Sender

This message came from outside your organization.

ZjQcmQRYFpfptBannerEnd

Hi Everyone,

I’m experiencing an issue with Demeter (v0.9.26) after upgrading from

Windows 10 to Windows 11. On Windows 10 it worked without problems, but

now it won’t start properly. When I click the desktop icon (or run it

from the Start menu), the window briefly appears and then crashes. I’ve

tried rebooting, running as Administrator, and reinstalling, but the

issue persists. Has anyone else run into this on Windows 11?

Thanks in advances,

Jueli Shi

Postdoc Research Associate

Pacific Northwest National Laboratory

Richland, WA 99352 USA

Tel: 509-375-2284

Jueli.Shi@pnnl.govmailto:Jueli.Shi@pnnl.gov

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-- Bruce Ravel ------------------------------------ bravel@bnl.govmailto:bravel@bnl.gov National Institute of Standards and Technology Synchrotron Science Group at NSLS-II Lead Beamline Scientist, 6BM (BMM) Building 743, Room 114 Upton NY, 11973 Homepage: https://urldefense.us/v3/__http://bruceravel.github.io/home/__;!!G_uCfscf7eW... Beamline: https://urldefense.us/v3/__https://www.bnl.gov/ps/beamlines/beamline.php?r=6... Software: https://urldefense.us/v3/__https://github.com/bruceravel__;!!G_uCfscf7eWS!f1... Demeter: https://urldefense.us/v3/__http://bruceravel.github.io/demeter/__;!!G_uCfscf...