Microsoft has acknowledged an issue affecting some Windows 11 users utilizing virtual desktops, where a black screen appears after sign-in, requiring manual launch of Explorer to regain access. This glitch is linked to devices operating on the August 2026 non-security preview update or later. It has been predominantly observed on Azure Virtual Desktop (AVD) hosts using FSLogix, with crashes of Windows Explorer noted in the Application event log. A temporary workaround involves using Task Manager to initiate explorer.exe as a new task. Microsoft has implemented a Known Issue Rollback (KIR) via Group Policy to disable the problematic change until a permanent fix is released. Versions 26H1, 25H2, and 24H2 of Windows 11 are affected, while Windows 10 and Windows Server do not appear to be impacted.