window 7 the dependency service or group failed to start

Solution - 1
open command prompt (start >All Programs >Accessories > Command Prompt [ps: Right click and run as Administrator]). 

Type in sfc/scannow and then press enter. Reboot the computer.

If the problem still exist after reboot , then you have to reset the TCP/IP stact to installation defaults by typing netsh int ip reset reset.log and reset the WINSOCK entries to installation defaults by type netsh winsock reset catalog. Reboot the machine.

Solution - 2

If the solution-1 din't works then you can try this solution. First open the command prompt with admin privileges. Then You type in 
net localgroup administrators localservice /add 
net localgroup administrators networkservice /add

USB Device Removal using Command Prompt

1. Type diskpart and wait for the diskpart prompt (DISKPART>)
2. Type list volume
3. Note the volume number of the USB drive carefully (use listed properties such as drive letter, label, type and size for help)
4. Type select volume , where  is the volume number noted above
   
5. Type remove all dismount
6. Type exit to quit Diskpart

xcopy in DOS

xcopy source destination /E /I /C

Show hidden files using command prompt

open command prompt and type the drive name.. then enter the below command.

attrib -s -h -r /s /d

HOW TO SOLVE ORA-28001: THE PASSWORD HAS EXPIRED

https://hecpv.wordpress.com/2014/10/16/how-to-solve-ora-28001-the-password-has-expired/

How to detect Windows Disc is 64 bit or 32 bit

go to the drive root and open the autorun.inf file.

In notepad, the 64 bit version shows:

[AutoRun.Amd64]
open=setup.exe
icon=setup.exe,0

[AutoRun]
open=sources\sperr32.exe x64
icon=sources\sperr32.exe,0

The 32 bit version shows:

[Autorun]
open=setup.exe
icon=setup.exe,0

----------------------

Open a command prompt as an administrator

Start, cmd, Ctrl+Shift+Enter


Insert the Windows 7 DVD, and close any autoplay popup.
Type dism /Get-WimInfo /WimFile:X:\sources\boot.wim where X is your DVD drive's letter.

You should see something like the following:

Deployment Image Servicing and Management tool Version: 6.1.7600.16385

Details for image : h:\sources\boot.wim

Index : 1
Name : Microsoft Windows PE (x86)
Description : Microsoft Windows PE (x86)
Size : 806,390,831 bytes

Index : 2
Name : Microsoft Windows Setup (x86)
Description : Microsoft Windows Setup (x86)
Size : 881,382,947 bytes

The operation completed successfully.



If your disk is 32-bit, it will look like above where it says (x86). If it's 64-bit, it should say, (x64).

How to unhide the hidden folders and files

If Pendrive drive letter as H:

Enter this command: attrib -h -r -s /s /d h:\*.*