We have a near-new Toshiba Satellite L510 notebook running Windows 7. It locked up yesterday and I eventually forced a shutdown. On restart, after long time with a screen blank except for the mouse arrow, it came up with a box headed "Startup Repair is checking your system for problems". After a while it said it was attempting repairs, and gave the message "Repairing disk errors. This might take over an hour to complete." A blue rectangle is constantly moving from left to right to show activity.
It has now been "repairing" for 12 hours with no change. I tried clicking "Cancel" but it told me the current repair operation cannot be cancelled. It is under warranty but it would be more convenient if there was a simple process to repair it at home. Even getting it to the repair shop would be a challenge as it won't let me cancel the process and shut it down, and if I force a shutdown with the power button, I'm concerned about making the disk error problem worse.
Can anyone suggest a solution?