However, after a few hours, they all suddenly stopped working at upload time and I got an extra error in orange that reads: "Uploading 226144 bytes from C:\Users\DELLUS~1\AppData\Local\Temp\arduino_build_886677/sketch_oct11a.ino.bin to flash at 0x00000000" and when the Blue LED stops flashing nothing happens....no successful load.
This now happens on all sketches, even the startup Arduino blank outline sketch. I even tried a brand new D1 mini. I am using a Dell inspiron 64 bit PC with Windows 10 and all the updates.
I have seen a similar loading error message issue listed elsewhere where the article said the bootloader esptool should be replaced by the newer esptool.py to solve the static memory allocation issue....but I can't find any step by step method to actually install this on Win 10. I even installed Python 2 to try to load it automatically. I am not good enough to understand how to follow the instructions at https://github.com/themadinventor/esptool as they may not be for a PC with Win 10.
Any suggestions....anyone? Any help with my newfound hobby would be appreciated.