This arcicle talks about a scenario where computer boots into normal mode (screen resolution is fine, programs are starting in the taskbar) but most of the services were not running, when tried to start them manually it says error 1084: cannot start in safe mode.
1. Click Start and then click on Run
2. Type Regedit
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.
3. Navidgate to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\SafeBoot
4. There should be two subkeys, 'Minimal' and 'Network', if there is a third subkey 'Option', delete the entire option subkey