- After installing KB5074109, KB5073455, or KB5073724, users connecting to Azure Virtual Desktop or Windows 365 Cloud PCs via the Windows App could experience authentication errors and credential prompt failures. Microsoft is preparing an out-of-band fix. Within the meantime, enterprise teams should direct affected users to attach via the Distant Desktop client for Windows (MSRDC) or the Windows App Web Client.
- A small variety of users might notice that the password icon on the Windows login screen isn’t visible. This has been an ongoing issue for the reason that August 2025 update. Microsoft published a Known Issue Rollback (KIR) to deal with Pro and Home users. Enterprise deployments should use an updated Group Policy to revive the icon.
This update intentionally removes legacy Agere and Motorola soft modem drivers (agrsm64.sys, agrsm.sys, smserl64.sys, smserial.sys) to deal with CVE-2023-31096, an elevation of privilege vulnerability. Notably, the mere presence of those drivers — even with no modem connected — rendered systems vulnerable. Hardware depending on these drivers will now not function after applying the January updates.
As we noted in December, the 2011 certificates currently utilized by most Windows devices will begin expiring in June, with a second batch expiring this coming October. Devices that don’t receive the updated 2023 certificates could fail as well securely or stop receiving future Secure Boot security fixes.
Resolved issues
It is a recent section to our monthly rundown. Depending on future Microsoft updates, this section may evolve or get integrated in platform specific sections. The January release resolves several issues that had been affecting enterprise environments: