Thank you for your patronage of DLsite.

Currently, authentication via PlayDRM is experiencing technical issues.

Per our investigation, it would seem that the issues in question only manifest in environments that are running Windows 11 version "24H2"　that was released October 2024, and that, in other environments authentication can be performed without issue.

As we have received many reports of problems occurring due to Windows 11 Version "24H2" and are aware that games made by certain makers have ceased to work in this environment, it is highly likely that the current authentication issues with PlayDRM are related.

Microsoft's Official Page ("Windows 11, version 24H2 known issues and notifications")

If you update to or install Windows 11 version "24H2", it is highly likely that you will become unable to authenticate PlayDRM works, and thus we strongly recommend that you avoid doing so for now.

* Information on how to confirm your Windows version in a Windows 11 PC environment is available [ HERE ]

Even if you have already updated to Windows 11 version "24H2", if 10 days have yet to elapse, it should be possible for you to restore your older version of Windows 11.

* Please note that we cannot provide support regarding how to revert to a previous version of Windows, so we advise that you please research how to do so online / via Microsoft's official help documents, and perform the procedure at your own risk and with self-responsibility.

>If it is not possible for you to restore your Windows 11 to a previous version, please contact us via the DLsite User Helpdesk. Make certain to select "Product Troubleshooting" and "About work authentication" on the contact form, and include your 20 digit Support Serial Key in the main body of your inquiry.

* Information on how to confirm the Support Serial Key is available [ HERE ]

We ask for your understanding of the circumstances pertaining to this matter and apologize for any inconvenience this may be.