Applies to:

Windows Server 2008 R2 RTM

Note:  You should check http://support.microsoft.com for the latest version of the different files.

List of Memory leaks and Performance related hotfixes post RTM for Windows Server 2008 R2 as of August 16, 2010:

 

2032595 A memory leak issue occurs in Internet Explorer 8 when you switch between XML files

http://support.microsoft.com/?id=2032595

983528 The TCP receive window autotuning feature does not work correctly in Windows Server 2008 R2 or in Windows 7

http://support.microsoft.com/?id=983528

983478 You experience low performance when you call the TreeView_SetItem macro of a tree-view control on a Windows 7 or Windows Server 2008 R2-based computer

http://support.microsoft.com/?id=983478

983460 Startup takes a long time on a Windows 7 or Windows Server 2008 R2-based computer that has an Intel Nehalem-EX CPU installed

http://support.microsoft.com/?id=983460

983458 You cannot save documents to a folder or change the permission settings of folders on a SMB 1.0-based remote server from a Windows-based computer that has security update 980232 (MS10-020) installed

http://support.microsoft.com/?id=983458

983289 The "ZwAllocateVirtualMemory" function fails together with a STATUS_INSUFFICIENT_RESOURCES error randomly when you have sufficient memory in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=983289

982667 Windows intermittently does not detect the optical disk drive when you start a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=982667

982383 You encounter a decrease in I/O performance under a heavy disk I/O load on a Windows Server 2008 R2-based or Windows 7-based computer

http://support.microsoft.com/?id=982383

982303 Terminal Services performance counters report an incorrect number of sessions when a heavy load situation occurs in Windows Server 2008 R2 or in Windows Server 2008

http://support.microsoft.com/?id=982303

981791 "STOP: 0x0000001a" error message on a computer that has an Intel Westmere processor together with the Hyper-V role installed on Windows Server 2008 SP2 or on Windows Server 2008 R2

http://support.microsoft.com/?id=981791

981765 The network performance is not as fast as expected on a computer that has NUMA-based processors and that is running Windows Server 2008 R2 or Windows 7

http://support.microsoft.com/?id=981765

981709 You experience a long delay when the IVssBackupComponents::AddComponent is used to add thousands of components in Windows Server 2008 R2 or in Windows 7

http://support.microsoft.com/?id=981709

981619 A hotfix is available that improves the performance of CLR when a .NET Framework 3.5 SP1-based application runs in a virtualized environment

http://support.microsoft.com/?id=981619

981314 The "Win32_Service" WMI class leaks memory in Windows Server 2008 R2 and in Windows 7

http://support.microsoft.com/?id=981314

981208 Poor performance when you transfer many small files on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=981208

977977 RSS network throughput performance decreases on Windows Server 2008 R2-based computers that have more than 32 processors

http://support.microsoft.com/?id=977977