Why scan disk run while login and for what are all it will run

Run a check disk on your hard drive.


Run and SFC scan on your computer.

Repair your profile.

1st have you tried the repair on the screen at the start of the video?
if so u will probable have to format and reinstall windows...

2nd if u have another computer that works you can take the hard drive out and put it in other computer and save pix and personal stuff off.....but try running scan disk on drive then the repair.

how to run SCAN DISK
eMachines Laptop Repair Fix Dis-assembly Tutorial

First thing I'd do would be to run a hard drive scan from a cd or bootable USB. It sounds very much like a hardware problem and failed hard drives are very common occurances. Given the age of your PC that seems to be the most likely cause of this problem but a hdd scan will confirm that. Unfortunately you'll need access to a PC to get those tools ready.

Have you removed any virus's or spyware? Windows is either getting stuck on a corrupted driver/loader or a file was deleted. Some virus's do this. If you have a windows disk, run setup from the disk and you will be given the option to repair windows before installing. Select this and when prompted, select startup repair. If this does not work boot to safe mode with networking and try running system restore. If you have system restore enabled and it shows up unavailable or no restore points set, you might have a virus. Forget the free virus/spam removal downlads, they WILL NOT WORK!!! Go to onecare.live.com and use their full scan. It is completely free, runs online, and provided by Microsoft, not some knock-off company. It is the ONLY free removal tool that hes ever worked for me, and I have tried literally every one I have ever found on Google.

Microsoft doesn't seem to have any information on XP having this error. But here's the general consensus after a little investigation:

1. Boot into safe mode by pressing the F8 key repetitively right after you turn on your PC until you see the safe mode screen.
2. Click Start >> Run. A Run window will appear.
3. Type "services.msc" in the Open field and then click OK. A "Services" window will open.
4. Find "Indexing Service" and double click on it. A "Indexing Service Properties" window will open.
5. Find the "Startup type" dropdown menu and select "Disabled", click "OK", and close the "Services" window.
6. Double click "My Computer" on your desktop. If it isn't there, then go to Start >> My Computer.
7. Find your hard drive, usually labeled "Local Disk (C:)", right-click on it and select "Properties". A dialog box will open.
8. Select the "Tools" tab.
9. In the upper third of the dialog box you'll see an area zoned "Error-checking". Click the button "Check Now". A new dialog box will open.
10. Check off the boxes "Automatically fix file system errors" and "Scan for and attempt recovery of bad sectors", then click "Start". You may be prompted to restart the computer. If this is the case, go ahead and restart.

Windows will check the hard drive for errors and run a surface scan. This may take a while depending on how big your hard drive is. Once it is finished, you'll arrive at your normal login screen. If Windows went ahead and ran the scan in safe mode without requiring a reboot then, once it is finished, go ahead and reboot the computer. Once at the login screen, go ahead and login. You shouldn't have the error any longer. If you do, be sure to report back here with details. The less details you provide, the less I can help.

Try to tune up your machine: scan disk, clean up, and optimize your registry with any registry tools you have, and try also to defragment your hard disk.

Yes this is an unfortunate virus that has attacked your system at this time. you can clear all partitions and reinstall the entire operating system. this will bring back the OS but, you will lose all info that was stored in the partitioned drives. You can do this by inserting the xp or vista disk then, restart the system and before the dell bios flash gos away, hit f4 then, choose boot disk. this will start the reinstallation of the OS again.

Tapping F8 key during bootup, to go in Safe Mode. Login as administrator.
After getting upto desktop, run the Checkdisk command and run a complete system scan with your Antivirus. Let me know the status after this, I will further investigate and fix the problem.

pankaj you can run scan disk if using 98, schedule the scan disk if using xp. it will scan the disk and  will give you full details about surface of disk

You Mean You Want to be prompted on which drive you want to boot, you need a bootloader to do that (there is a way to do it with start>run>msconfig, but its been a while since ive done it, and i dont want to try to explain it, and just confuse you.