When I've had to do this, I usually just have the originator (e.g., MS Media Creation Tool) write the file directly to the USB in the first place, precisely to avoid issues like this.
You might try a "cloning" utility, such as Carbon Copy Cloner or the cloner tool in Drive Genius. > On Jul 25, 2020, at 9:25 PM, David Schwartz <da...@yesdavid.com> wrote: > > Maybe Roxio Toast would work. > > > > >> On Jul 25, 2020, at 9:22 PM, Carl Hoefs <newsli...@autonomy.caltech.edu> >> wrote: >> >> I just tried this command: >> >> $ sudo dd if=Win10_2004_English_x64.iso of=/dev/rdisk2s1 bs=1m >> >> It completes successfully, but the flash drive is rendered unreadable by >> both macOS and Windows. I guess I'll have to give up and buy an el-cheapo >> Win10 CD on eBay... >> >> -Carl >> >> >> >>> On Jul 25, 2020, at 6:15 PM, Carl Hoefs <newsli...@autonomy.caltech.edu> >>> wrote: >>> >>> I am trying to write a .iso file to a USB flash drive to be used to install >>> Windows 10 onto a PC with a blank HDD. >>> >>> I've downloaded the 5.27GB 64bit Windows10.iso file (twice) from >>> microsoft.com, but when I use DiskUtility.app to "restore" the .iso file to >>> the flash drive (formatted as ExFAT & GUID), it always errors out with: >>> "Could not validate source - invalid argument". It sounds like it's trying >>> to parse the .iso file and can't (the .iso isn't corrupted). This is the >>> behavior on both Mojave and Catalina. >>> >>> Is there any other way I can do this on a Mac, or do I have to hunt down >>> another Windows PC? >>> >>> -Carl > _______________________________________________ > MacOSX-talk mailing list > MacOSX-talk@omnigroup.com > https://www.omnigroup.com/mailman/listinfo/macosx-talk _______________________________________________ MacOSX-talk mailing list MacOSX-talk@omnigroup.com https://www.omnigroup.com/mailman/listinfo/macosx-talk
