My hp 6730b laptop is not booting .I noticed when i run diagnostic test.The test keeps failing. The error displayed is Short DST -failed and then the following error code is displayed- OSMP3F-GFX5BD-XD6XGJ-6OQLO3.I know that prior to this time I had tried to install the driver of a new printer but finally cancelled the installation because it required the driver and I didn’t have it because the printer belongs to my relative and he wasn’t available at the time. I can't afford to run HP recovery because i have information that i can not afford to lose on it. I am unable to log in as a system administrator because the system keeps telling me i have the wrong password when i know i do.My system did not come with a windows installer cd. I have tried to create a booting cd and changing the booting order on the bios of my system ,but i notice that cd booting does not excist in the core booting options.I have also tried to create a booting USB....but in creating that one of the steps is that you copy files from a windows installer CD . I have tried to create the windows installer cd but it didn't work.I noticed that when i put in the USB without completing the installation.my system attempted to boot from the USB but was unable to because all the files required were not available.