need to blank admin password on slave hard disk
Posted on 2016-09-29
i have an interesting problem.
i have an all in one touchscreen pc, with win 10.
the touchscreen is broken, not cracked, but it clicks the screen 10 times a second. you cannot type or do anything once it has booted because the touchscreen overrides it.
this happened before, but back then the customer didnt have a windows password and had disabled the touchscreen in dev manager. the reason he could log in was because he could just click the arrow on the password box and it would allow that eventually.
he has subsequently set a windows password, but a recent win 10 update has reenabled the touchscreen.
so now we cannot log in because it is impossible to type a password in.
i cannot get to any diagnostics. i cant change the boot order. i cannot use any external devices to boot from. it is literally stuck at the login screen.
i need to be able to blank the password on one of the accounts, then i can log in and disable the touchscreen maybe but i cant use the normal methods i use linux boot disk - (cant boot from other device) or change utilman to cmd.exe - ive actually done this by taking out the disk and but i cant then type in the cmd window when it boots!
so im stuck. is it possible to
1) add a user to a windows install that is offline (i.e,. on a slave drive)
2) blank the password of a user on a slave drive
im not keen on trying to physically detach the touchscreen.
ive thought about trying to remove the drivers for the touchscreen but i dont know what they are, and i think windows will reinstall them quick smart anyway.
one thing that did occur was to try to put the disk in another pc and boot from it, then disable the touchscreen, then put it back in the original machine, but im not crazy about this either as its likely to cause issues with drivers etc.