[FIX/WORKAROUND] Applying RUU.exe causing fastboot-htc.exe has been stopped.
i recently turned my HTC One into a Google Play Edition with the Conversion RUU Zips
and just wanted to get back to WWE Stock and used a RUU from HTC for this, but everytime and on multiple devices I was getting the error:
"fastboot-htc.exe has stopped working..." and the whole program just crashed. (the phone wasnt bricked, even after many times.)
at the Beginning of flashing the RUU.
I solved it by flashing a Combined TWRP Custom Firmware Package from this thread
and then repeat the RUU.. and this time it worked. (List of all Firmware
I select the version that the RUU was going to flash (for example at mine: 4.19.401.9 for the same RUU version)
[* also with unlocked bootloader and S-OFF, no need to change that!]
Maybe the RUU doesnt like the GPE Firmware, but this was the solution.