A. Even though your machine may have gigabytes of RAM, by default WinPE only allocates 32 MB of scratch space, which is writable memory available on the WinPE system volume RAM disk. You can change the scratch space to be 32, 64, 128, 256, or 512 MB when you create the WinPE environment. To modify the scratch space, run the command

peimg /scratchspace=<new size> /image=<mount path of the PE> Related Reading:

Check out hundreds more useful Q&As like this in John Savill's FAQ for Windows. Also, watch instructional videos made by John at ITTV.net.