Need Help urgently "everything lost"

the other day when i was opening an nero saved image file (.iso) it started recollecting the files in the project. as it was doing so i cancelled the task an my comp got hanged .
on the restart during the welcome screen i got 2 errors .(i dont know wat didnt read them ) but one of them said chkdsk utility must be done. i did it through cmd. again i restarted my comp the disk checking started (the one appears after booting) that showed many many errors, and then removed it. those were really many.
then when i got back 2 windows i found my following folders were missing
1>songs 7gb
2>movies 32gb
3>software installers 16gb
all these folders were in different drives among these software installer folder was running.but everything else on the drive was present and the disk space was still consumed
pls help me guys my folders are my only loved ones specially these which are gone.

Have you changed anything recently? Deleted/moved/added anything to your system that you suspect collides with the timing of these errors?
Are these errors new? Did you experience them before at any time?
Was you PC running well before?
Do you have System Restore enabled?

And firstly, have you ran anti-spyware, anti-virus software yet?
i.e. Spybot S&D, AVG anti-spyware etc. If not do that first and they can be found in the sticky section here: http://www.d-a-l.com/help/spyware-adware-viruses-hijackthis-logs/

Get into Safe Mode and run them. When your computer boots, the first screen is the POST screen. Reaching after that tap repeatedly your F8 key or some computers use the Shift key until you get an option screen with Bootup options, i.e. Safe Mode, Safe Mode with networking, Last Known Good Config etc. Choose SafeMode with networking or just Safe Mode using your arrow keys and press enter.

Do you have any errors or information from Event Viewer?

They can be found in the start menu Programs>Accessories>Administrative Tools>Event Viewer.

Check in the System, Applications and Anti-Virus titles there. If there is anything, right-click and choose properties. Then click the button you'll see in the new window, and it will copy all the info into your clipboard. Paste it into a text document (i.e. Notepad) and after you have them all, you can copy/paste them back here.

If you want the chkdsk results, look for Winlogon in the Application section, right-click choose properties and again press the above button to copy it over to your clipboard and then paste it in a text file to see what it is.
You can post that back here too because many times chkdsk moves files.

Here is a free tool that might help you recover your files.

There are many others that cost some money and are more powerful but this one is worth a try.

http://www.pcinspector.de/file_recovery/UK/welcome.htm

Event Type: Warning
Event Source: Disk
Event Category: None
Event ID: 51
Date: 11/27/2006
Time: 3:43:28 PM
User: N/A
Computer: COL-42F66EA5F79
Description:
An error was detected on device \Device\Harddisk1\D during a paging operation.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 04 02 68 00 01 00 b6 00 ..h...¶.
0008: 00 00 00 00 33 00 04 80 ....3..€
0010: 2d 01 00 00 00 00 00 00 -.......
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 78 e5 25 19 00 00 00 .xå%....
0028: 86 c5 13 00 00 00 00 00 †Å......
0030: ff ff ff ff 03 00 00 00 ÿÿÿÿ....
0038: 40 00 00 82 02 00 01 00 @..‚....
0040: ff 20 0a 12 8c 01 20 40 ÿ ..Œ. @
0048: 00 10 00 00 0a 00 00 00 ........
0050: 00 d0 98 81 10 9e fd 81 .И�.žý�
0058: 00 00 00 00 c0 03 9d 81 ....À.��
0060: 00 00 00 00 bc f2 92 0c ....¼ò’.
0068: 2a 08 0c 92 f2 bc 00 00 *..’ò¼..
0070: 08 00 00 00 00 00 00 00 ........
0078: f0 00 0b 00 00 00 00 0b ð.......
0080: 00 00 00 00 00 00 00 00 ........
0088: 00 00 00 00 00 00 00 00 ........





this was the firrst error in event viewer of that particular day.there are thousands of many shall i post them?

It would be best to run a diagnostic on your hard drive and trying to recover your files asap.

Indications are of a failing hard drive.

What is the make of your hard drive?

If you do not know open the Device Manager and click the + next to disk drives.


Right click My Computer then click Manage then Device Manager

Yes that seems like a failing hard drive. Choose your hard drive manufacturer from here All HDD Diagnostic Tools here and download the utility to test your hard drive.