Download Sidder 26 2021 [extra Quality] [2025]

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

While the original Microsoft TechNet Gallery link is no longer active, the official home for the tool is now GitHub.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 . download sidder 26 2021

It displays the last modified date, file size, and whether a disk is currently "in use" (locked). Critical bugs in the "Size" and "Last Change"

Released in 2020 and widely used throughout 2021, version 2.6 introduced several stability improvements: It displays the last modified date, file size,

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

Sidder is a lightweight, portable utility designed to bridge the gap between abstract filenames and actual users. In RDS environments, User Profile Disks are saved with names based on a user's Security Identifier (SID), such as UVHD-S-1-5-21-....vhdx . Identifying which disk belongs to which person is difficult without a manual lookup. Sidder automates this by:

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?