I'd start with running chkdsk from the command prompt of your Windows 7 install disk, as adviced. I
If that fails, delete the partition and use your recovery disks to go back to factory conditions. If that also fails, install a new hard disk and use your recovery disks to go back to factory conditions.
When I turned on the PC the HP screen appeared and a blank, black screen with a blinking underscore. The screen stays for about 5 minutes then a windows recovery menu appears. It says "Windows was unable to start. This might be due to a recent hardware or software change" and a bunch of options. I selected the "Start Windows Normally" option.
Then the windows 7 logo appears. It stays for a minute and the system restarts. The whole process repeats again!!
Then I used my Ubuntu Bootable flash drive which luckily worked. When I tried to access the Local Disk C partition, the OS displayed an error :-
Error mounting /dev/sda2 at /media/ubuntu/1846A7AF46A78BD6: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=999,gid=999" "/dev/sda2" "/media/ubuntu/1846A7AF46A78BD6"' exited with non-zero exit status 13: ntfs_attr_pread_i: ntfs_pread failed: Input/output error
Failed to read NTFS $Bitmap: Input/output error
NTFS is either inconsistent, or there is a hardware fault, or it's a
SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
then reboot into Windows twice. The usage of the /f parameter is very
important! If the device is a SoftRAID/FakeRAID then first activate
it and mount a different device under the /dev/mapper/ directory, (e.g.
/dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation
for more details.
Please help fast!!!
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