How to repair Compaq laptop stuck on infinite boot loop?

I would boot the machine into the Windows Repair Environment, using Windows Repair CD, then perform a System Restore to set the machine back by a few days.

Hi,

Check with Compaq Support, their on-line documentation, diagnostics, and ask in their forums about

known issues.

Compaq - Support, Drivers, and on-line documentation

http://www.compaq.com/country/cpq_support.html

Compaq (HP) - Forums

http://h30434.www3.hp.com/psg/|

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StartUp Repair often works from a Windows 7 Installation Disk or Windows 7 Repair Disk

when it does not from Recovery or a Recovery Disk. If needed how to make a Windows 7

Repair Disk is below. A Repair Disk can be made on any computer with a CD burner running

XP, Vista, or Window 7 as it uses no files from the Host computer.

You can try some of these in Safe Mode - repeatedly tap F8 as you boot.

If you do not have a Windows 7 disk you can borrow a friends as they are not copy

protected. Your System maker will also sell the physical DVD cheap since you already

own Windows. Also you can make a repair disk on another computer.

Try Startup Repair - (If at ANY point you gain some but not full access to Windows come

back and try Startup Repair again.)

How to Boot to the System Recovery Options in Windows 7

http://www.sevenforums.com/tutorials/668-system-recovery-options.html

What are the system recovery options in Windows 7?

http://windows.microsoft.com/en-us/windows7/What-are-the-system-recovery-options-in-Windows-7

Try StartUp Repair from Recovery Options or Windows 7 disk.

How to Run a Startup Repair in Windows 7

http://www.sevenforums.com/tutorials/681-startup-repair.html

Also from the COMMAND PROMPT of Recovery Console (if possible) or a Windows 7 disk

Start - type in Search box -  COMMAND   find at top of list -  RIGHT CLICK  -  RUN AS ADMIN

sfc /scannow

How to Repair Windows 7 System Files with System File Checker

http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

Then run checkdisk (chkdsk).

How to Run Disk Check in Windows 7

http://www.sevenforums.com/tutorials/433-disk-check.html

Retry Startup Repair after Chkdsk.

If needed after those you can try System Restore from Safe Mode or the Recovery or Windows 7

disk.

How to Do a System Restore in Windows 7

http://www.sevenforums.com/tutorials/700-system-restore.html

**If you need to make repair disks - these help repair Windows not re-install.**Often a Repair Disk will help when the Recovery Disk does not.

Download Windows 7 System Recovery Discs - now charging $9.75 for the ISO

images to make the disks.

http://neosmart.net/blog/2009/windows-7-system-repair-discs/

How to Create a Windows 7 System Repair Disc - Free

http://www.sevenforums.com/tutorials/2083-system-repair-disc-create.html

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If needed :

What to do if Windows won't start correctly

http://windows.microsoft.com/en-us/windows-vista/What-to-do-if-Windows-wont-start-correctly

How to Boot to the System Recovery Options in Windows 7

http://www.sevenforums.com/tutorials/668-system-recovery-options.html

What are the system recovery options in Windows 7?

http://windows.microsoft.com/en-us/windows7/What-are-the-system-recovery-options-in-Windows-7

How to Do a Repair Install to Fix Windows 7

http://www.sevenforums.com/tutorials/3413-repair-install.html

Hope this helps.

Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle - Mark Twain said it right.

Hi,

There are instructions on how to make a disk on another computer.

To use a Boot Disk set the Setup/Settings (BIOS/CMOS) often F2 as you boot so

watch the screen - set the boot order to CD/DVD first and boot - remember to set

it back to hard drive when done.

Hope this helps.

Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle - Mark Twain said it right.

Though I don't have one, I'm pretty sure the disc probably wouldn't run.