Can you help me fix my laptop?

Help, please! My laptop (Toshiba equium) isn’t working and I have no idea why. It has so much of my work on it and im desparate to get it up and running again, if any one can help I would be so so grateful.

It comes up with this on start up –
_________________________________________________________
Windows Error Recovery
Windows failed to start. A recent hardware of software change might be the cause.

If windows files have been damaged or configured incorrectly, Startup repair can help
diagnose and fix the problem. If power was interrupted during startup, choose start
windows normally.
(use the arrow keys to highlight your choice.)

Launch startup repair (recommended)
Start windows normally
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If I choose ‘Launch startup repair’ then it comes up
‘windows is loading files…’
then a loading screen then a window comes up saying –
‘startup repair is checking your system for problems…’
after just a couple of seconds this disappears and then a window that says
‘windows cannot repair this computer automatically’ comes up with theses options –
‘view diagnostic repair details’
‘view advanced options for system recovery and support’
‘finish’
And ‘cancel’
__________________________________________________________

If I choose ‘Start windows normally’ then a load screen appears for a few seconds before it simple restarts and goes back to the ‘Windows error recovery’ screen.

Please help.
The diagnositic repair retails are miles long, to long to type out.

I do not want to lose my information, I have important work on my laptop – please help.

Computer not turning on?

Ok i press on and it does exactly this: Its vista new laptop compaq presario

Black screen
takes longer than usual on the windows loader
black screen for like 15 seconds
black screen forever

RESTART PC AGAIN THIS HAPPENS

black screen
"windows error recovery"
"windows failed to start. a recent hardware or software change might be the cause. if windows files have been damaged or configured incorrectly, startup repair can help diagnose and fix the problem. if power was interrupted during startup, choose start windows normally
(use the arrow keys to highlight your choice.)

Launch startup repair (reccomended)
Start windows normally"

i click launch start up repair
black screen
Windows is loading files… (white bar under text)
black screen
windows loader microsoft corp
goes to a really old windows style computer with the blue background
stat up repair cannot repair the computer automatically.

iclick view advanced options for system recovery and support
i try all the things in there to help recover computer, none work. all fail, i go back and click view diagnostic and repair details

just shows basic info of my pc like 10 pages worth i click finish, comp turns off.
WTF DO I DO. its been like this like a week.

I have dell insipiron 1545 laptop wid windows vista home edition, its not starting, I have installed partion magic software for making my only c drive to partition then when i tried to partition its not partitioned so i tried to remove the software in the control panel and after that it suddenly says ur system has incurred a problem & now when i am starting it says windows error recovery wid 2 options – Launch startup repair(recommended) & start windows normally when i click start windows normally its not starting and when i click Launch startup repair(recommended) then its saying select o.s. to repair and no o.s. is showing in the system recovery options so i clicked load drivers where it says "insert the installation media for the device & click ok to select the drivers" when i click ok then all drivers folders is showing emtpty not matching the setup information, I dont knw how to fix this Could u help me how to start my os and get back my previous data or how to start it in safe mode. Any solutions. plz help me guys.

Can anyone help me how to start my dell insipiron 1545 laptop in safe mode or in command prompt? Is there any way to solve it Please help

My brother built a new computer based around a new processor and motherboard, (intel Quad-core Q6600 and Asus P5E), along with a new case so it would be compatible(Antec 900). After transferring over these new parts along with the necessary older parts the computer works fine except for one problem. Everything powers on, the computer gets past BIOS and then goes to boot windows but instead he gets:

"Windows Error Recovery"
Windows failed to start. A recent hardware or software change might be the cause.

If windows files have been damaged or configured incorrectly start up repair can help diagnose and fix the problem. if power was interrupted during startup choose start windows normally.

Launch startup repair(reccomended)
Start windows normally

Whenever he starts windows normally he gets the blue screen of death and an instant restart. If he launches repair it goes to a loading bar that completes in about 5 seconds then just sits at 100% and does nothing.
P.S.
We do not have a copy of windows vista, it came installed on the computer and we never recieved an actual copy.
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To Tina G
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He cannot get to the actual desktop to do any of that from, windows will not launch.

Custom Build PC. Started having glitches in almost all programs. Usual operations, just this day starting acting all weird/glitches.

I scanned with AVG and got the following changes.

Partition table (MBR) Change
Boot Sector of disc Change
Kernel32.dll Change
wsock32.dll Change
user 32.dll Change
shell32.dll Change
ntoskrnl.exe Change

I attempted to get into System Restore but I get an new window that only allows me to report a windows error.

I got into BIOS, changed to boot from CD-Rom. Put Win XP Disc in and it boots. When I select repair it tells me I have no hard drive recognized. When I attempted to re-install, it tells me I have no hard drive recognized.

NO. 1: Virus? If so, do I just get something like Norton which will allow me to restore to a earlier time? Full Scan with AVG picked up notta except the changes I’ve included herein.

NO. 2: Glitch? I’m lucky to have had a couple years no problems and today is my problem day? It’s a computer, computers get glitches? Am I able to undo the changes to bring me "back to normal?"

NO 3, Good computer tech can breeze through this in 3 minutes?

NO 4, Is there a back-door to get into system restore to restore to a previous time?

I did de-frag the hard drive which took nearly 7 hours (250-gig). I did a Win. System Clean up which took 30 min.

De-frag normally takes 30-min at best. System Clean up takes usually 2-3.

Now de-frag and System Clean up taking the usual short periods of time.