# Desktop client on Windows won' start libcrypto.dll missing **URL:** \ **Category:** 📱 Desktop & mobile clients\ **Tags:** update\_problems, windows\ **Created:** [July 26, 2023, 9:47am UTC](https://help.nextcloud.com/t/desktop-client-on-windows-won-start-libcrypto-dll-missing/166921 "2023-07-26T09:47:55Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![saettel.beifuss0](https://help.nextcloud.com/user_avatar/help.nextcloud.com/saettel.beifuss0/32/70079_2.png) [@saettel.beifuss0](https://help.nextcloud.com/u/saettel.beifuss0)\ **Post date:** [July 26, 2023, 9:47am UTC](https://help.nextcloud.com/t/desktop-client-on-windows-won-start-libcrypto-dll-missing/166921/1 "2023-07-26T09:47:56Z")
Today, after a turning on the my Windows 11 client, NC prompted me to update the client. Installation went trough, but there was error window that popped up. Clicking OK did not help, because it reopened itself. I decided to reboot, but the problem still persists. When I try to open Nextcloud, the client won’t start and show me this error. Only after clicking 5-6 times OK, the window will finally close. ![Screenshot 2023-07-26 114258](https://help.nextcloud.com/uploads/default/original/3X/c/d/cd4e6426c47e7a6af4f3e128cd0e1f09e08fb0d6.jpeg) Reinstalling the client (without Explorer restart but reboot) solved the problem. Nextcloud 3.9.1.202330724 | Edition | Windows 11 Pro | | --- | --- | | Version | 22H2 | | Installiert am | ‎18.‎10.‎2022 | | Betriebssystembuild | 22621.1992 | | Leistung | Windows Feature Experience Pack 1000.22644.1000.0 | I have saved the Nextcloud Roaming folder with the logs, if developers are interested. ---
**Author:** ![bb77](https://help.nextcloud.com/letter_avatar/bb77/32/6_22734026db12803ebb3e059622ac3534.png) [@bb77](https://help.nextcloud.com/u/bb77)\ **Post date:** [July 26, 2023, 9:55am UTC](https://help.nextcloud.com/t/desktop-client-on-windows-won-start-libcrypto-dll-missing/166921/2 "2023-07-26T09:55:57Z")
Hi @saettel.beifuss0 This has been fixed already. Seems like you have to reinstall the client, or use the same installer in repair mode in order to fix it on your system: > > > \### ⚠️ Before submitting, please verify the following: ⚠️ > > \- \[X\] This is a \*\*bug…\*\*, not a question or a configuration issue. > \- \[X\] This issue is \*\*not\*\* already reported on Github (I've searched it). > \- \[X\] Nextcloud Server and Desktop Client are \*\*up to date\*\*. See \[Server Maintenance and Release Schedule\](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) and \[Desktop Releases\](https://nextcloud.com/install/#install-clients) for supported versions. > \- \[X\] I agree to follow Nextcloud's \[Code of Conduct\](https://nextcloud.com/contribute/code-of-conduct/) > > \### Bug description > > After updating to 3.9.1 my previously fully functional installation now throws an error on startup. > > \### Steps to reproduce > > 1. update to 3.9.1 > 2. (try to) start the programm > > \### Expected behavior > > No error or provide the required dll. > > > \### Which files are affected by this bug > > libcrypto-1\_1-x64.dll > > \### Operating system > > Windows > > \### Which version of the operating system you are running. > > Windows 11 > > \### Package > > Other > > \### Nextcloud Server version > > 27.0.1 > > \### Nextcloud Desktop Client version > > 3.9.1 > > \### Is this bug present after an update or on a fresh install? > > Updated from a minor version (ex. 3.4.2 to 3.4.4) > > \### Are you using the Nextcloud Server Encryption module? > > Encryption is Disabled > > \### Are you using an external user-backend? > > \- \[X\] Default internal user-backend > \- \[\] LDAP/ Active Directory > \- \[\] SSO - SAML > \- \[\] Other > > \### Nextcloud Server logs > > \_No response\_ > > \### Additional info > > !\[Screenshot 2023-07-25 140415\](https://github.com/nextcloud/desktop/assets/52623794/04660088-7658-4377-b0d5-1121ac4e3f3a) ---
**Author:** ![Juengling](https://help.nextcloud.com/letter_avatar/juengling/32/6_22734026db12803ebb3e059622ac3534.png) [@Juengling](https://help.nextcloud.com/u/Juengling)\ **Post date:** [August 1, 2023, 9:57am UTC](https://help.nextcloud.com/t/desktop-client-on-windows-won-start-libcrypto-dll-missing/166921/3 "2023-08-01T09:57:05Z")
Sorry, not solved. Same problem here with Windows 10 and NC v3.9.1. Reinstall with or without reboot didn’t help, even complete uninstall and new installation didn’t. Missing files: - libcrypto-1\_1-x64.dll - libssl-1\_1-x64.dll Repair mode with “same installer” not possible, because I can just find v3.9.0 on the web site. After uninstallation I installed v3.9.0, which works fine. ---
**Author:** ![Ein\_Besucher](https://help.nextcloud.com/user_avatar/help.nextcloud.com/ein_besucher/32/53521_2.png) [@Ein\_Besucher](https://help.nextcloud.com/u/Ein_Besucher)\ **Post date:** [August 4, 2023, 8:32am UTC](https://help.nextcloud.com/t/desktop-client-on-windows-won-start-libcrypto-dll-missing/166921/4 "2023-08-04T08:32:59Z")
Same here. Still not fixed. Win11 pro Build 20230613 ---
**Author:** ![ferenczig](https://help.nextcloud.com/user_avatar/help.nextcloud.com/ferenczig/32/53538_2.png) [@ferenczig](https://help.nextcloud.com/u/ferenczig)\ **Post date:** [August 5, 2023, 9:46am UTC](https://help.nextcloud.com/t/desktop-client-on-windows-won-start-libcrypto-dll-missing/166921/5 "2023-08-05T09:46:35Z")
Download the installer from the website. Using it will solve the problem. ---
**Author:** ![andreas.krapohl](https://help.nextcloud.com/user_avatar/help.nextcloud.com/andreas.krapohl/32/30002_2.png) [@andreas.krapohl](https://help.nextcloud.com/u/andreas.krapohl)\ **Post date:** [August 9, 2023, 10:18am UTC](https://help.nextcloud.com/t/desktop-client-on-windows-won-start-libcrypto-dll-missing/166921/6 "2023-08-09T10:18:31Z")
as already mentioned the website still offers 3.9.0 (at least here in germany) - downloading 3.9.1 from [https://github.com/nextcloud-releases/desktop/releases/download/v3.9.1/Nextcloud-3.9.1-x64.msi](https://github.com/nextcloud-releases/desktop/releases/download/v3.9.1/Nextcloud-3.9.1-x64.msi) fixed the problem for me. ---
**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 14, 2024, 8:44pm UTC](https://help.nextcloud.com/t/desktop-client-on-windows-won-start-libcrypto-dll-missing/166921/7 "2024-12-14T20:44:31Z")