Tag: Access Control Lists

Fix Incorrect Access Control Lists on the Windows 7

May 11, 2009 by Jason

On the heels of the Windows 7 Release Candidate public download going live, Microsoft has released a hotfix designed to fix the RC bits. The Redmond company has acknowledged the existence of an issue where incorrect access control lists (ACLs) are associated with the Windows 7 root. As a direct consequence of this bug, Windows 7 RC users will find that some applications fail to perform under normal parameters, and that the operating system fails to deliver on simple tasks. According to Microsoft, only the Ultimate SKU of the English version of 32-bit Windows 7 is affected by the problem.

“The folder that is created as the root folder of the system drive (%SystemDrive%) is missing entries in its security descriptor. One effect of this problem is that standard users such as non-administrators cannot perform all operations to subfolders that are created directly under the root. Therefore, applications that reference folders under the root may not install successfully or may not uninstall successfully. Additionally, operations or applications that reference these folders may fail,†Microsoft explained. Read More»