Download [better] Sidder 26 2021 -

It scans your UPD storage folder and resolves every SID into a readable Domain\Username .

No installation or DLLs are required—just run the single executable. How to Download Sidder 2.6

Released in 2020 and widely used throughout 2021, version 2.6 introduced several stability improvements: download sidder 26 2021

As of May 2026, remains a popular choice for system administrators who need to manage User Profile Disks (UPDs) in Remote Desktop Services (RDS) environments. Originally created by Arjan Mensch (msfreaks), this version was a milestone release because it officially became open-source. What is Sidder?

Built on the .NET 4.8 framework, it is compatible with modern Windows Server versions like 2012, 2016, and 2019. It scans your UPD storage folder and resolves

While the original Microsoft TechNet Gallery link is no longer active, the official home for the tool is now GitHub. You can find the original project and its various community-supported updates on the msfreaks Sidder GitHub repository .

It allows admins to delete profile disks directly from the interface after confirmation. Key Features of Sidder v2.6 Originally created by Arjan Mensch (msfreaks), this version

For users looking for even more advanced features, there are newer community forks like SidderPlus , which adds functions for closing locked SMB files and compacting disks. Summary of Versions Sidder v2.0 Sidder v2.6 (2020/2021) Sidder v2.7+ / SidderPlus Open Source Yes Sortable Columns Fixed Advanced Tools Close locked files / Compact disks

Critical bugs in the "Size" and "Last Change" columns were fixed to ensure they sorted data correctly.