Pi3 seems to be corrupting SD card - Raspberry Pi Forums

i have pi3 refuses startup lot of time. headless. running jessie pixel. don't see listed device on router. using official pi3 psu - other pi2's (also headless) use bog standard phone adapters.
when remove sd card , put in win10 pc says card has errors , needs fixing. let ends message "no errors"!
plug in pi , boots.

have 4 pi2's not exhibit fault. 1 of running new pixel. run jessie.

here (hopefully relevant) output dmesg pi3 has booted indicates problems file system (straight after fixing win 10). how can fix these file issues once , all?

pi 3 jessie pixel 32gb sd card

[ 1.880300] ext4-fs (mmcblk0p2): info: recovery required on readonly filesystem
[ 1.880315] ext4-fs (mmcblk0p2): write access enabled during recovery
[ 1.885447] mmc1: queuing unknown cis tuple 0x80 (2 bytes)
[ 1.887000] mmc1: queuing unknown cis tuple 0x80 (3 bytes)
[ 1.888556] mmc1: queuing unknown cis tuple 0x80 (3 bytes)
[ 1.891388] mmc1: queuing unknown cis tuple 0x80 (7 bytes)
[ 1.896670] ext4-fs (mmcblk0p2): recovery complete
[ 1.933689] ext4-fs (mmcblk0p2): mounted filesystem ordered data mode. opts: (null)

pi 2 jessie pixel external usb wifi dongle 16gb sd card

[ 1.869839] ext4-fs (mmcblk0p2): mounted filesystem ordered data mode. opts: (null)
[ 1.869913] vfs: mounted root (ext4 filesystem) readonly on device 179:2.
[ 1.880604] devtmpfs: mounted
[ 1.933736] vfs: mounted root (ext4 filesystem) readonly on device 179:2.

advice...

make sure pi shut down before remove card - specifically, wait green light stop blinking after issuing power down - wait couple of seconds, remove power, card.

found using above disciplined shutdown, haven't had corrupt card.

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