i havnt found anything on this sry .. There are circumstances where safe mode will not be able to help you, such as when Windows system files that are required to start the system are corrupted or damaged. In this case, the Recovery Console may help you.
and make sure you chooseing the right safe mode ...
To start the computer in safe mode
You should print these instructions before continuing. They will not be available after you shut your computer down in step 2.
Click Start, click Shut Down, and then, in the drop-down list, click Shut down.
In the Shut Down Windows dialog box, click Restart, and then click OK.
When you see the message Please select the operating system to start, press F8.
Use the arrow keys to highlight the appropriate safe mode option, and then press ENTER.
If you have a dual-boot or multiple-boot system, choose the installation that you need to access using the arrow keys, and then press ENTER.