EFS Archives • Helge Klein

USMT and Beyond – Practical Tips for Your Migration

This article is part of Helge’s Profile Toolkit, a set of posts explaining the knowledge and tools required to tame Windows user profiles. This article presents a collection of tips and tricks around user state migration with and without Microsoft’s USMT. I originally compiled this material for my presentation at the 2010 TechDay Online.

EFS Encryption and CopyFile(Ex): Why DIY is Better

Generally I am not the type to recommend re-implementing functionality present in some API. But with the Windows function CopyFile(Ex) there may be no alternative, because of the less than sub-optimal way Windows copies EFS-encrypted files: If the source encryption key can be used on the target (i.e. if the target computer can access the […]

New Articles, Tools, Tips and Tricks: Office 2010, RDS/XenApp, Windows, Web

As before this is mainly a condensed and beautified version of my twitter postings. You can get them unfiltered and without delay by following me.

The 30 Second File Copy Bug, or: EFS = Bad Performance?

This article describes a bug that dramatically reduces file copy performance on Windows systems. I cannot provide a fix (not having access to the Windows source code), but I have found a workaround.

Useful PowerShell Scriptlets for Files and Folders

What is the best way to learn PowerShell? Never use cmd.exe again! With PowerShell 2.0 on my Windows 7 machine I decided it finally is time to polish my rusty knowledge of the language dating back to the days when PowerShell was still called Monad. In my attempt to re-familiarize myself with PoSh I consciously […]

Cleaning up the Mess Left Behind by Multiple EFS Certificates

In case you have (un?)wittingly been juggling around with multiple EFS certificates like me, you may feel a strong urge to clean up the mess. Which mess? It can happen quite easily that different files are encrypted with different keys. In addition to that, directories that are marked for encryption have EFS certificates associated with […]

Tales from the Crypt – EFS and the Upgrade to Windows 7 RC

How can you mess up a simple OS upgrade by using encryption? Simple. Here is what happened to me when I upgraded my Windows 7 beta system to the RC version.

Tag: EFS

USMT and Beyond – Practical Tips for Your Migration

EFS Encryption and CopyFile(Ex): Why DIY is Better

New Articles, Tools, Tips and Tricks: Office 2010, RDS/XenApp, Windows, Web

The 30 Second File Copy Bug, or: EFS = Bad Performance?

Useful PowerShell Scriptlets for Files and Folders

Cleaning up the Mess Left Behind by Multiple EFS Certificates

Tales from the Crypt – EFS and the Upgrade to Windows 7 RC