Suddenly only Safe mode works

[tiethilo]

[FONT=Helvetica Neue]For no apparent reason Windows started to get stuck during boot-up and at slightly different points it seems. Sometimes I get the boot animation, sometimes not. Safe mode works though, chkdsk finds no disk errors. Windows' start up repair gets stuck as well.[/FONT]
[FONT=Helvetica Neue]I have a dual boot with Ubuntu and incredibly enough Ubuntu also gets stuck during booting starting at the same moment. Even booting Ubuntu from a stick gets stuck without error msg.[/FONT]
[FONT=Helvetica Neue]How do I pinpoint the problem?[/FONT]

[FONT=Helvetica Neue]Many thx to you all![/FONT]

 

[Tmagic650]

Did you recently install any Windows Updates? Working only in Safe Mode means that an important driver is missing or corrupt. Also, malware could have caused this

 

[tiethilo]

No new drivers. and mind you, the same problem appears for ubuntu suddenly. would that indicate it's a hardware failure of some kind that affects both (seemingly independent systems)? as I said, not even the ubuntu live disk works anymore. everything was fine one day and only safe mode works the next day...

thx for caring!

 

[Tmagic650]

Maybe a dying video card...

 

[tiethilo]

That's a possibility, yet ubuntu and windows seem to use high resolution for their logos during the startup and it works up to this point (but stops there or soon after).