NB550D - does not start after Windows Update

NetBook may have turned off during the update of Windows like now it will not go beyond the Green loading bar with 'Microsoft Corporation' below. It gives an option to start windows normally or to load files to repair, but the two find themselves stuck on the Green loading bar. SafeMode (all options) earn as much as classpnp.sys and then freezes.

Using a different laptop I did a windows repair disc and then copied the files on the USB key (netbook has no CD drive) according to the guides online. When the USB key is loading files of repair, there is a flashing cursor, and then he's new to the Green loading bar. SafeMode (all options) gets stuck on disk.sys with inserted USB.

Found a few threads with similar symptoms with most being caused by a questionable HD (verified, nothing obviously disconnected) connection or the SATA mode in the BIOS the wrong (seems to make no difference between ACHI or Compatible). Next plan is to start a live version of linux and try to replace the classpnp.sys file with on another copy of Windows 7.

If anyone has experienced this before or can give indications that they would be much appreciated,
Thank you.


To be honest, never had any problems after a windows update.
But it looks like an anomaly in the system.
My first idea was the use of the repair option and you try to start the operating system using the option: use the last known good configuration.

But if it would not help, then you can try to replace the files to aid and booting from the Live CD. Not sure if this would solve the problem, but I think that it of certainly worth trying otherwise you will have to reinstall the OS using the HARD drive recovery (if still available)

Tags: Toshiba

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