You have done too many changes and it is nearly impossible to guess the current status.
Standard procedure is based on going to previous restore points until there is functional system.
If you cannot get logon screen, then Last Known Good in F8 menu is the pass to previous working operating system.
If nothing helps, you should starrt from the scratch and restore from good backup and if you have none, then new installation is the only optin.
Regards
Milos
PS: It is a good idea to ask before you do irreversible steps.
- Proposed as answer by Arthur XieMicrosoft contingent staff, Moderator Tuesday, May 21, 2013 9:24 AM
- Marked as answer by Arthur XieMicrosoft contingent staff, Moderator Wednesday, May 29, 2013 9:18 AM
right after the windows 8 logo(its a MSI logo for me) the screen just goes black
Do you have a second monitor you could attach? Some have found that this symptom means the OS inexplicably found a second screen to write to and now is not writing to the one you are looking at. Then another possibility on the same tack would be to try pressing Win-P, CursorUp and Enter as if you could see the Second Screen dialog on the phantom monitor and change its state (or at least cause a refresh on the screen you were watching). For this case it may help to differentiate about whether what you are looking at is a "black" screen or a "blank" screen. E.g. whether there is a fringe of light at the border and less than total blackness overall.
Also, it is not clear if you can still boot into Advanced Options at all, e.g. using bootable recovery media. Then you could try switching to Low Res video to get the generic VGA driver instead of whatever driver you are getting now.
Depending on your assumptions about what is happening another thing that people have done is use Narrator to navigate around the dark Login screen (and beyond) and actually recover that way. For example, if you got to the Shutdown button, opened it up, put your cursor on the Restart button and pressed Shift-Spacebar everything might start working wonderfully--just as if you had been able to press the (mythical?) Shift-F8! <eg> You wouldn't need to be running Narrator to do that but it certainly would help. Unfortunately a problem is that activating Narrator is extraordinarily remote in that dialog and you have to dodge your password field without knowing where you started from, (so you might overshoot or undershoot it with the number of Tabs that you try pressing and then start applying Spacebar, etc. at the wrong time.)
FYI
Robert Aldwinckle
---
- Proposed as answer by Arthur XieMicrosoft contingent staff, Moderator Tuesday, May 21, 2013 9:24 AM
- Marked as answer by Arthur XieMicrosoft contingent staff, Moderator Wednesday, May 29, 2013 9:18 AM
a small loading bar that does not load
That sounds hopeful. What you should do is experiment with another computer which has two monitors to understand the possibilities. Alternatively, change your BCD so you can boot in VGA mode (or safe mode, etc.) to see if that changes what you can see and do.
Good luck