Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello Alina 3652
Good day and thanks for posting in Micrsoft community.
In regard to the issue, the error message "HCW Installation Prerequisites" in the Office hybrid Configuration Wizard (HCW) can be caused by several factors like Testing Hybrid Connectivity, Exchange Configuration, TLS Settings and Exchange Server Version Compatibility.
Please note that Microsoft has independent community channel resources where our related most valuable professionals and community members can provide possible information and resolutions.
I have consulted my team members about your issue and will recommend that you contact experts in Microsoft Hybrid. This is because the forum moderators do not have sufficient permission or resources to perform Hybrid issues in this public forum.
We have a dedicated support team that specializes in handling Hybrid issues. I would like to suggest you contact Microsoft Hybrid support team for further troubleshooting: -Microsoft Exchange Hybrid Management - Microsoft Q&A
We apologize for any inconvenience. Feel free to contact us if you need further assistance from us, we will be happy to help.
Sincerely,
Bertrand