I changed my drive letters and now my computer will not boot up?
822011
You can easily correct that problem. Seems that windows cant find the C: drive to boot up from anymore. What you do is [Easy] - \n\nRepair windows by inputting the CD. Do not press R for repair console. When it tells you that your install of windows XP is corrupt or malfunctioning continue with the option to repair windows. This will just re-install windows xp for you.. Also correcting that boot up problem\n\n[Semi Hard] \n\nLoad up the windows XP cd and when available press R for repair console. In there just type HELP and you should get a list of commands. I think its the one called Fixboot. Once you have innitialized that just try to reboot. \n\nWhat you have done?\n\nYou have changed the original boot location of windows. Windows believes that all of its information is stored on C: by changing the drive letter you have not allowed it to boot.  If I am wrong, Understand that I have not fully taken my time to describe these steps. They do follow along these lines..\n\n\nHope I helped.
966061
try checking ur disk by using chkdsk on ur drive \nor alternatively have the recovery console for that operatign system
1161761
use "DiskInternals Undelete" to recover the lost data to another proper drive, then you can reformat the c: drive and the it should work fine.. install windows then copy the recovered data back to the formatted drive
617638
click on my computer, select properties, advanced , start up and recovery and make changes there. It will solve ur problem.
408008
try usin a ghost, copy the entire content of your original hard drive to your new one, i do this quite often, i back up my hard drive and just incase something bad happens i can just copy the entire thing from my back up drive
590860
try to boot ur comp in safe mode by pressing F8 during booting and open.\n\nif u don have any thing important in it just format it by a right click and format option. if it donesn work put some os installation cd and format it.
72805
You do realize that if you do this, you will loose all the data on the drive AND the operating system if you perform it on the boot (C:) drive.\n\nOkay, you've been warned, whatever drive you want type in format c: (or whatever drive letter you want).\n\nThat's the simple way, a lot more commands are located here, http://www.computerhope.com/formathl.htm#01
1179903
You need to make adjustments to the hard drive prior to replacing the MOBO (i.e. when it is still running in the previous system). About a month ago, I uploaded (to a friends Web page) the step-by-step instructions,  to help others with this problem. \nOr, you will have to format and reinstall everything (OS included) \nassuming  Win XP, and your original key code will not work if you reinstall again to a different hardware profile (each 25 digit key code, produces a hardware ID code) which is only viable on that machine.(unless you use the work-around) - http://www.geocities.com/samamouster@sbcglobal.net/change_mobo.html
125636
you can do this without any additional program.\n\nRight click My Computer and select Administration\nExpand Data Storage and click Data Storage Administration\nIn the right window upper half all connected drive will be shown. Right click on a Drive letter and then click Change drive letter.\nA new window open and then click on change and then select the desired drive letter.
907587
you can just reformat it. put in your operating system cd and restart your computer. the setup program should start and then ask you if you want to repair the os or reformat it. reformat it. if you're not sure, take it to a computer repair shop and i'm sure they can help you.
705440
Try re-installing the drivers for the drive through the Device Manager in the Control Panel.\n\nIf you are unsure whether you have the drivers go to the manufacturer website and search for your model.\n\nThen you sgould be able to download the drivers with instructions on installation.
1074137
a virus likely corrupted the boot sectors on the harddrive.  you need professional help
655229
Try reboot computer and before windows starts press F8 key.\n\nFrom menu choose safe mode with command prompt. Type in this window your password. Then try change them. Go to In windows typing in command prompt explorer.exe and make changes in your user profile. If in this case can't type any symbols from keyboard. Insert original CD with OS in CD/DVD drive and try restore youtr system.
123559
from the command prompt\n\nconvert drive_letter: /fs:ntfs\n\ne.g.:  convert c: /fs:ntfs
924129
Check your jumper settings on your drive, go to your Bios setup and make sure the drive is there, make your cd rom first boot device, then hard drive second boot device
607865
Replace the hard drive, if it fixes the problem then you know that they hard drive was messed up, if not, then you got a whole different problem...Good Luck.
402480
If nothing starts up then its a simple power problem and you should be able to start your system after installing a new Power Unit. However if you are able to start the system then try to getinto the BIOS and use the CD drive as a boot option. Try reinstalling Windows and this should work. \nIf you have important data, try taking your Harddrive to your friends or your other PC and then install this drive as a secondary drive on your friends PC. This will then allow you to recover your data and then you can even check if your drive is corrupted or only the Windows install.