I'm trying to get Se7en_UA 6.5.7 working under Windows 7 Home Premium x86, but it's failing at the point of slipstreaming SP1. I've already copied the Windows 7 files on a previous run, so I'm just loading the program and clicking on "Inject SP1 with 7zip" and then selecting the option for "all languages" (just in case that's relevant) I've watched the screen while 7zip works and seen quite a few "Everything is Ok" messages, finishing with the following: Everything is Ok Files: 2549 Size: 60763368 Compressed: 9507582 Waiting for 0 seconds, press a key to continue ... Deleted file - E:\SPslip\KB976933-LangsCab0.cab Deleted file - E:\SPslip\KB976933-LangsCab1.cab Deleted file - E:\SPslip\KB976933-LangsCab2.cab Deleted file - E:\SPslip\KB976933-LangsCab3.cab Deleted file - E:\SPslip\KB976933-LangsCab4.cab Deleted file - E:\SPslip\KB976933-LangsCab5.cab Deleted file - E:\SPslip\KB976933-LangsCab6.cab Press any key to continue . . . After pressing a key, the command prompt closes. I start it again and see the title bar of the app for a few seconds and then a command prompt where it looks like an attempt to mount the wim image(s) fails... Deployment Image Servicing and Management tool Version: 6.1.7600.16385 Error: 0xc1510111 You do not have permissions to mount and modify this image. Verify that you have Read/Write permissions or mount the image using the /ReadOn ly option. Note that you cannot commit changes to an image with read-only permis sions. The DISM log file can be found at C:\Windows\Logs\DISM\dism.log Deployment Image Servicing and Management tool Version: 6.1.7600.16385 Error: 2 Unable to access the image. Make sure that the image path and the Windows directory for the image exist and you have Read permissions on the folder. The DISM log file can be found at E:\applications\Se7en_UA\Logs\SPslip.log Wait /Get-Features SP1 Wait /Get-Packages SP1 Wait /Get-Drivers SP1 Deployment Image Servicing and Management tool Version: 6.1.7600.16385 Error: 50 The request is not supported. The DISM log file can be found at C:\Windows\Logs\DISM\dism.log File not found - E:\SPfile SUCCESS: The file (or folder): "E:\SPfile" now owned by user "Ian-PC\Ian". processed file: E:\SPfile Successfully processed 1 files; Failed processing 0 files Could Not Find E:\SPfile\*.* Could Not Find E:\SPfile\*.* Could Not Find E:\SPfile\*.* Could Not Find E:\SPfile File not found - E:\SPslip SUCCESS: The file (or folder): "E:\SPslip" now owned by user "Ian-PC\Ian". processed file: E:\SPslip Successfully processed 1 files; Failed processing 0 files Could Not Find E:\SPslip\*.* Could Not Find E:\SPslip\*.* Could Not Find E:\SPslip\*.* ALL Temp Folders Deleted Pause to see if ERROR. Copy Error and let me know Press any key to continue . . . I'm following instructions and letting you know about the error. When I run Se7en_UA now, the checkbox that did have the caption "Inject SP1 with 7zip" is now titled "SP1 Start: 20:36 Done: 20:37" but remains unchecked. Any ideas? PS I do have a quick question - is the WAIK actually required or not? I know there's a reference to it on the original post; But this didn't seem too clear to me... sorry. EDIT: I forgotten to mention that I've been running the program with admin rights