Windows 7 login problem

Run chkdsk and sfc from the Recovery Console:

How to run chkdsk or System File Checker (SFC) from the Recovery Console

• Boot your Vista or Windows 7 installation DVD
• When you see "Press any key to boot from CD or DVD", press Enter
• At the "Install Windows" screen, click on Repair your computer at lower left
• At the System Recovery Options screen, make note of the drive letter assigned to your boot drive (normally C:) and click Next
• At the Chose a Recovery Tool window, click on Command Prompt. You will be sitting at X:\Sources directory
• Run chkdsk or SFC
  
  • If you did not note the drive letter of your boot disk, you can enter bcdedit and look at the osdevice line to see what it is.
  • For chkdsk, type chkdsk c: /r and press Enter (use the letter from above if not C:).
  • For sfc, type sfc /scannow /offbootdir=c:\ /offwindir=c:\windows and press Enter (use the letter from above)
  
  

Let either run to completion undisturbed.

Vista or Windows 7: If you don't have a install DVD, you can download a legal copy here:
Windows 7 Direct Download Links
Download Official Windows Vista RTM with SP1 Setup Files (32-bit and 64-bit)

Make sure you get the same version you have installed: 32 or 64 bit; Home Premium, Pro or Ultimate.

Owen2311 welcome to SevenForums

   Warning

You will need a USB FLASH DRIVE

   Tip

Download the Tool from a non infected PC

Farbar Recovery Scan Tool

Choose one that goes with your OS bit version . Save the file to a USB Flash drive

32-bit Version OS Farbar Recovery Scan Tool

64-Bit Version OS Farbar Recovery Scan Tool x64

   Note

Click the button and right-click Computer .Select Properties . Look for System Type: which will say 32-bit Operating System or 64-bit Operating System

Plug the flash drive into the infected PC.

Enter System Recovery Options.

To enter System Recovery Options from the Advanced Boot Options:
Restart the computer.
As soon as the BIOS is loaded begin tapping the F8 key until Advanced Boot Options appears.
Use the arrow keys to select Repair Your Computer menu item.
Select US as the keyboard language settings, and then click Next.
Select the operating system you want to repair, and then click Next.
Select your user account an click Next.

To enter System Recovery Options by using Windows installation disc:
Insert the installation disc.
Restart your computer.
If prompted, press any key to start Windows from the installation disc. If your computer is not configured to start from a CD or DVD, check your BIOS settings.
Click Repair your computer.
Select US as the keyboard language settings, and then click Next.
Select the operating system you want to repair, and then click Next.
Select your user account and click Next.

On the System Recovery Options menu you will get the following options:

• Startup Repair

• System Restore

• Windows Complete PC Restore

• Windows Memory Diagnostic Tool

• Command Prompt

Select Command Prompt

In the command window type X:\FRST.exe (for x64 bit version type X:\FRST64.exe) and press Enter

   Note

Replace letter X with the drive letter of your flash drive.

   Tip

Type the commands below to see what your letter is for the USB drive and press ENTER after each command

Code:

Diskpart
List volume

The tool will start to run.
When the tool opens click Yes to disclaimer.
Press Scan button.
FRST will let you know when the scan is complete and has written the FRST.txt to file

Upload the FRST.txt file

   Note

FRST.txt file will be inside the root of the USB Flash Drive

Let's try Post #3

To find your USB drive letter type in

Diskpart then press [Enter]

Then type in

List volume [ENTER]

Look for something that says Removable

Take note of the drive letter then type in Exit press [enter] you should see a message say leaving Diskpart ...

Then type in the drive letter with FRST.exe or FRST64.exe

X:\frst64.exe

Or

X:\frst.exe

Change the x with your actual letter of the USB drive .

Download the one the goes with your OS 64 bit or 32 bit

FRST.exe goes to 32-bit
FRST64.exe goes to 64-bit