Tip & How-To about Microsoft Windows Vista Home Premium with Service Pack 1: Windows

Windows startup does not complete.

Hi.
If The BIOS is showing initial splash screen, and completing POST test correctly, but Windows Startup does not complete, and you are in one of the following situations:

  • You get a black screen with a cursor blinking.
  • You get a black screen with test or command prompt.
  • You have a blue screen with a warning message.
  • Windows keep restarting.
  • Windows is freezing.


Any of the condition described must occur before getting to login screen or to Windows desktop, or the problem is other than the one described here.

If you get a message saying Operative system not found you may also be in same situation. Only in that case the disk may also be physically damaged, and you may have lost your data, or disk may need replacement.


The conditions above usually tell us that the Windows system files needed for Startup are corrupted.
Windows cannot load the files anymore and will hang on with the cursor blinking.
When this happens you need to reinstall the operative system.

To start you can try loading the system in safe mode, by pressing F8 on Startup.

If the computer is starting in safe mode, try doing a system restore to a recent date before the problem started. This will be faster than installing a fresh system, and most of your settings will be preserved.

You may find out that when the system does not load, most computer will not even start in safe mode.

Check also that there is no CD, DVD or floppy inside the computer, also disconnect any connected USB device, apart mouse and keyboard, and attempt starting the computer again.

If all that does not work, then you will need to reinstall Windows.

Installing Windows is not a complicate operation, all you need is the computer recovery disk, or a Windows install disk valid for the licence number printed on the Microsoft Certificate of Authenticity sticker.

If you use a recovery disk, remember to choose partial recovery, so that the original data contained in the hard disk won't be deleted.

Using Windows generic disk you will need to choose Update Recovery if asked, install the system on top of the same directory (eg: C:Windows), and you will also need to choose Leave System File Intact, when asked by Windows setup.
Using a Windows generic disk you may also need to install additional drivers, that usually are available for download from the manufacturer website.
Even choosing a partial recovery , or an update install, some of the installed software may be affected, and may need a fresh setup.
Another way to proceed is installing a copy of windows into a different folder (eg. C:/Windows000), and choosing to leave system file untouched.
This will reinstall system files hosted in root folder, and sometimes may bring back to life the old system.
In that case you will be asked what system to start from Windows boot manager on Startup, your old system will be the second one.

Using this method is better to remove the new installation Startup from boot manager after installing and testing that the old system is back at work. This is done editing the system hidden file Startup.Ini, hosted in root folder. The file is a text file.

If you have important data inside the hard disk, it is always advisable to copy all data onto an external media. Even if the procedures described normally do not delete your data, when doing maintenance on a computer there is always the chance to loose data.
If the computer is not starting because of a system problem, the data can only be recovered using a boot disk, or physically removing the hard disk drive from computer, and connecting it to a different computer (an external enclosure may help).


This same instructions broadly apply to all recent Windows operative system, Windows seven setup is slightly different from the procedure described here.

Posted by on

Microsoft Windows Vista Home Premium with Service Pack 1: Windows Logo

Related Questions:

1 Answer

Sony Vaio laptop won't stay on, it turns on then powers right off, and it is fully charged?


Try accessing the BIOS settings and set to a complete initial test (slower startup). If the computer turns off before completing the initial test (POST), then there is an hardware fault. In that case try starting the computer with no battery inside (only charger); try replacing memory modules; disassemble and start the computer with disc units and built in keyboard/pad not connected.

Dec 19, 2012 | Computers & Internet

1 Answer

when computer is powered on, the initial startup is ran, then once the bios is done loading and its booting to windows, you can hear the windows startup screen animation sound but the screen is completely black. The screen is visible during the initial start up only HP ELITEBOOK COMPAQ 6930p


Hi it may be worth pressing the FN+F5 keys just to make sure that it is not in standby


or you could try this


power up and straightaway tap the F8 key a few times
this may take you into the repair option
then choose the last known good configuration
windows will then restart and try to put it back to when it was last working ok

hope this helps you

many thanks

Aug 18, 2011 | HP EliteBook 6930p Notebook PC

1 Answer

i have a toshiba a305 it turns on says toshiba then just turns black still on all lights and fans but just a black screen


Your system is not producing video output after the POST, which means the Windows video is messed up or there is a problem with a component like memory.
Because you can see the Toshiba splash screen, it tells you the LCD screen is fine. At least you know the LCD screen is working. See if you can get into the CMOS setup screen. I think it may be by pressing F2 on startup. If you can get to that, make sure the hardware is correct (like seeing if your hard drive is seen as installed).
You can also try to press F8 on startup and start the computer in safe mode. Very possibly something is trying to start when Windows starts and not completing its startup.

May 23, 2011 | Toshiba Satellite A305-S6863 Laptop

2 Answers

im trying to install agp...how do i disable the on board vga


Hi there.
Remember that if you are swapping from on-board graphics to a card you have to go into the BIOS and tell the machine that the primary graphics adapter is AGP/PCI Express.
Plug the VGA cable into the on-board graphics port, start the computer and enter the BIOS, tell the computer to use the AGP/PCI card as primary, press F10, save the changes and exit the bios.
The computer will try and restart so let it boot to post and turn it off, then put in your card and try to boot again.
Please post back if you need more help or advice.

Good luck and thanks for choosing FixYa!!

Jun 04, 2009 | HP Compaq Motherboard

1 Answer

Dell Inspiron B130 Startup Issues


when digit the password to initiate does not initiate and it gives the following message me:
The User Profile Service service failed the logon.
User procases out cannot sees loaded
por favor la repuesta en español
Compaq Presario CQ60-215DX Note book PC

May 10, 2009 | Dell Inspiron B130 Notebook

Not finding what you are looking for?

537 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Microsoft Computers & Internet Experts

micky dee

Level 3 Expert

2774 Answers

Piyal Perera
Piyal Perera

Level 3 Expert

528 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18394 Answers

Are you a Microsoft Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Loading...