Creating an .iso file from a .wim file

To create a bootable media by using a .wim file, you need to convert it to an .iso file first.

To create a PE image (.iso file) from the resulting .wim file

Depending on your version of Windows AIK or Windows ADK, do one of the following:
- In the Start menu, click Microsoft Windows AIK, right-click Windows PE Tools Command Prompt, and then select Run as administrator.
- In the Start menu, click Microsoft Windows AIK, right-click Deployment Tools Command Prompt, and then select Run as administrator.
- In the Start menu, click Windows Kits, click Windows ADK, right-click Deployment and Imaging Tools Environment, and then select Run as administrator.
Run the Copype.cmd script to create a folder with Windows PE files. For example, from a command prompt, type:
```
copype amd64 C:\winpe_x64
```
Replace the default boot.wim file in your Windows PE folder with the newly created .wim file (for example, AcronisBootablePEMedia.wim). If the AcronisBootablePEMedia.wim file is located on c:\, then:

For WinPE 3.0, type:
```
copy c:\AcronisBootablePEMedia.wim c:\winpe_x64\ISO\sources\boot.wim
```
For WinPE 4.0, WinPE 5.0 or WinPE 10.0, type:
```
copy "c:\AcronisBootablePEMedia.wim" c:\winpe_x64\media\sources\boot.wim
```

Use the Oscdimg tool. To create an .iso file, type:

oscdimg -n –bc:\winpe_x64\etfsboot.com c:\winpe_x64\ISO c:\winpe_x64\winpe_x64.iso

Alternatively, to make the media bootable on both BIOS and UEFI computers, type:

oscdimg -m -o -u2 -udfver102 -bootdata:2#p0,e,bc:\winpe_x64\fwfiles\etfsboot.com#pEF,e,bc:\winpe_x64\fwfiles\efisys.bin c:\winpe_x64\media c:\winpe_x64\winpe_x64.iso

Burn the .iso file to a CD by using a third-party tool, and you will have a bootable Windows PE disc with Acronis True Image.