Windows will not start up - HP Computers & Internet

Steps

1. Use the Start menu. Click Start ? Computer (Windows 7 and Vista) or My Computer (Windows XP). ...
2. Use the keyboard shortcut. Pressing the Windows key + E will open the Windows Explorer screen.
3. Use the search bar. Click Start and then type explorer . ...
4. Restart Windows Explorer. ...
5. Start using Windows explorer.

Try tapping F8 from a cold start and see if you can start windows in safe-mode. If it is a Windows machine. Please advise if your machine does not use Windows or what happens, as to whether the system starts in safe-mode.

Here is a guide on how to start a Windows computer in safe-mode:
http://windows.microsoft.com/en-gb/windows/start-computer-safe-mode#start-computer-safe-mode=windows-vista

Windows not work with you new hardware.
1.Start windows in safe mode (press F8 before windows start).Maybe now windows recognize your new hard.
if reboot continues...
2.Insert Windows disc and start with disc.In the menu select repair start.

These WEB site may offer a solution for this problem.
Computer In Start Reboot Loop
http://pcsupport.about.com/od/findbysymptom/ht/returns-to-advanced-boot-options.htm http://windows.microsoft.com/en-us/windows/help/printer-problems-in-windows

read this -> http://dr-notebook.blogspot.com/2012/02/acer-as-4551-no-display-jalan.html

Press Win+R, type 'services.msc' and press Enter. Respond to the UAC prompt. Check that Background Intelligent Transfer Service is started and its startup type is 'Automatic.' (It can also be Automatic (Delayed Start).) If it is not started, right-click on it and select Start. Scroll down to Windows Update to make sure that it is started and it startup type is 'Automatic' or 'Automatic (Delayed Start).' If it is not started, right-click on it and select Start. If you had to start either service, try to run Windows Update again by clicking on Start -> All Programs -> Windows Update.

normal unless you have problems.

choose start windows in Safe mode, if it starts then everything will look big, don't worry about that for now. Then go to Start>accessories>system Tools>system restore and choose a date when you know that everything was working normally, when it has finished restoring the computer will restart. If asked choose start windows normally.

I hope this helps

2 solution for this problem

1) start - all programmes - accessories - windows side bar or

open the Start menu and in the search line type this word: sidebar
and hit Enter key