My laptop says no bootable instert disk - Toshiba Satellite L355-S7811 Notebook

Sounds like its not picking up or hard drive HDD or that its not booting from it 1st thing to check is if ur system sees the hdd u can see it in the bios on the first screen where it starts booting up and says ur manifacturer itl say something like press f2 to enter bios press it look around till u find the primery hdd is one showing or is it saying not found ? if showing itl say manifacturer and size ie samsung e123 500G or something once u checked exit without saveing

if it dont show u have a bad connection or a broken hard drive check connections

and let us know the results and a little more info on how u get to this message would help us i expect its the case u cant get windows to load up u just get this error message because the laptop cant comunicate with the hard drive and windows is loaded on that hard drive

it could be that its seeing ur hard drive however the operateing system is too badly corrupted to run

if this is the case laptops often have a backup made at the plant u press a cuple of keys at start up to run a restore im not sure what keys off hand

or you can start in safe mode running only basic parts of the os enough to get on and fix things

failing that if ur picking up the drive just fine and cant get ur old operateing system to run reinstall the os ( windows etc )

going by the info given id say its dead or poor connection to the hdd given that its a lap top its less likely to have a bad connection because there is no wire it slots straight in to the board so chances are its dead but till u check the bios to see if its being picked up at all who can tell

yes there is usualy a small message on the starting up screen where the motherboard detects installed hardware and it shuld say it there not detected point is check the cmos see if ur picking up ur primery hdd and we will go from there