I’m actually having the same problem now. I’ve tried using SD cards from Samsung and SanDisk. I’m trying to write a Raspberry Pi image ( 2018-11-13-raspbian-stretch-full.img ) from a Windows 10 x64 machine. I’ve been able to successfully read and write from the SD cards from other applications. In my case I do not believe that the cards that I am using are defective.
After selecting the card and the image I get the Security Elevation prompt in Windows. After giving permission there is an immediate failure. The message I get is identical to what is in the OP.
I’ve copied and pasted the log (minus the time stamps) below.
Modal accepted ({"name":"warning","value":true,"applicationSessionUuid":"d54da878-bc21-4f53-a895-71fc347bf108","flashingWorkflowUuid":"04e45594-252d-42bd-894a-b4d41507523f"})
Restart after failure ({"applicationSessionUuid":"d54da878-bc21-4f53-a895-71fc347bf108","flashingWorkflowUuid":"04e45594-252d-42bd-894a-b4d41507523f"})
Flashing 0 devices, 0% at null MB/s (total null MB/s) eta in undefineds with 0 failed devices
Flash ({"image":"C:\\Users\\joel\\Downloads\\2018-11-13-raspbian-stretch-full.img","drives":[{"size":15931539456,"isVirtual":false,"enumerator":"USBSTOR","logicalBlockSize":512,"raw":"\\\\.\\PhysicalDrive4","error":null,"isReadOnly":false,"displayName":"F:\\","blockSize":512,"isSCSI":false,"isRemovable":true,"device":"\\\\.\\PhysicalDrive4","busVersion":"2.0","isSystem":false,"busType":"USB","isCard":false,"isUSB":true,"devicePath":null,"mountpoints":[{"path":"F:\\"}],"description":"Generic MassStorageClass USB Device","isUAS":false}],"driveCount":1,"uuid":"76b79576-1319-4b8c-9961-4b34cd7451fa","status":"started","flashInstanceUuid":"76b79576-1319-4b8c-9961-4b34cd7451fa","unmountOnSuccess":true,"validateWriteOnSuccess":true,"applicationSessionUuid":"d54da878-bc21-4f53-a895-71fc347bf108","flashingWorkflowUuid":"04e45594-252d-42bd-894a-b4d41507523f"})
Elevating command: C:\Users\joel\AppData\Local\Programs\balena-etcher\balenaEtcher.exe C:\Users\joel\AppData\Local\Programs\balena-etcher\resources\app.asar
SafeWebview loaded ({"event":{"fromCache":false,"headers":{"Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8","Upgrade-Insecure-Requests":"1","User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) balena-etcher/1.5.5 Chrome/66.0.3359.181 Electron/3.1.3 Safari/537.36"},"id":177,"method":"GET","referrer":"","resourceType":"mainFrame","responseHeaders":{"access-control-allow-origin":["*"],"age":["489"],"cache-control":["max-age=600"],"cf-ray":["4b6e6f5e581ac546-ORD"],"content-encoding":["br"],"content-type":["text/html; charset=utf-8"],"date":["Wed, 13 Mar 2019 13:43:07 GMT"],"expect-ct":["max-age=604800, report-uri=\"https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct\""],"expires":["Wed, 13 Mar 2019 07:35:36 GMT"],"last-modified":["Tue, 05 Mar 2019 17:31:05 GMT"],"server":["cloudflare"],"status":["200"],"vary":["Accept-Encoding"],"via":["1.1 varnish"],"x-cache":["HIT"],"x-cache-hits":["2"],"x-fastly-request-id":["a33d2b23569ffc863aa21e1bd8b21051610d3d1a"],"x-github-request-id":["83D6:07D4:E51C4:1342DF:5C88B070"],"x-served-by":["cache-mdw17377-MDW"],"x-timer":["S1552484587.259467,VS0,VE0"]},"statusCode":200,"statusLine":"HTTP/1.1 200","timestamp":1552484585677.9832,"url":"https://assets.balena.io/etcher-featured/index.html?etcher-version=1.5.5&api-version=2"},"applicationSessionUuid":"d54da878-bc21-4f53-a895-71fc347bf108","flashingWorkflowUuid":"04e45594-252d-42bd-894a-b4d41507523f"})
Flash results {cancelled: false}
Terminating IPC server
pen modal ({"name":"warning","applicationSessionUuid":"d54da878-bc21-4f53-a895-71fc347bf108","flashingWorkflowUuid":"04e45594-252d-42bd-894a-b4d41507523f"})
I tried rolling back to version 1.5.0 Portable and received the same error.
I had to move over to the OS X version of Etcher to write the image from a different machines. I wasn’t able to write any image to any card using the Windows version.