Bypass Windows 7 user password

We need to force Windows into Automatic repair mode (just restart pc while windows is loading)
We need to wait till tool will finish scanning for errors and prompt us with System Restore
Cancel it
Click arrow that will expand Details about error
At the bottom of Details there is text file erofflps.txt, click it
We should see Notepad now
Pick ‘File’ – ‘Open’
Go to D:/Windows/System32
Change file type from .txt to All files
Search for sethc and rename it to sethc_bak
Search for cmd and make copy of it
Rename cmd copy to sethc
Close all windows and Finish Automatic Tool
Your PC should restart now
When Windows will ask for password for user just hit SHIFT five times
Instead normal message you will see black terminal
Now we need to input few command to reset password
Shell

# list all accounts net user # Disable password for give user_name net user user_name *

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# list all accounts
net user
# Disable password for give user_name
net user user_name *
Log in as user without password
Restore original sethc

Resetting main PostgreSQL password

Sometimes we can forget main password for PostgreSQL.

We should edit config file:

vim /etc/postgresql/<version>/main/pg_hba.conf

local   all             postgres                                peer

vim /etc/postgresql/<version>/main/pg_hba.conf

local all postgres peer

Restart postgresql service, so the configuration will take affect:

service postgres restart

1	service postgres restart

postgres psql

#set new password
ALTER USER postgres PASSWORD 'new_password';

postgres psql

#set new password

ALTER USER postgres PASSWORD 'new_password';

Remember to recover original setting of pg_hba.conf

Excel – breaking password for cell editing in Excel

Open excel file with cell password protection
Press ALT + F11
Double click on sheet
Pass this code:

Sub PasswordBreaker()
    'Breaks worksheet password protection.
    Dim i As Integer, j As Integer, k As Integer
    Dim l As Integer, m As Integer, n As Integer
    Dim i1 As Integer, i2 As Integer, i3 As Integer
    Dim i4 As Integer, i5 As Integer, i6 As Integer
    On Error Resume Next
    For i = 65 To 66: For j = 65 To 66: For k = 65 To 66
    For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66
    For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66
    For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126
    ActiveSheet.Unprotect Chr(i) & Chr(j) & Chr(k) & _
        Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _
        Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
    If ActiveSheet.ProtectContents = False Then
        MsgBox "One usable password is " & Chr(i) & Chr(j) & _
            Chr(k) & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _
            Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
         Exit Sub
    End If
    Next: Next: Next: Next: Next: Next
    Next: Next: Next: Next: Next: Next
End Sub

Sub PasswordBreaker()

'Breaks worksheet password protection.

Dim i As Integer, j As Integer, k As Integer

Dim l As Integer, m As Integer, n As Integer

Dim i1 As Integer, i2 As Integer, i3 As Integer

Dim i4 As Integer, i5 As Integer, i6 As Integer

On Error Resume Next

For i = 65 To 66: For j = 65 To 66: For k = 65 To 66

For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66

For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66

For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126

ActiveSheet.Unprotect Chr(i) & Chr(j) & Chr(k) & _

Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _

Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)

If ActiveSheet.ProtectContents = False Then

MsgBox "One usable password is " & Chr(i) & Chr(j) & _

Chr(k) & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _

Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)

Exit Sub

End If

Next: Next: Next: Next: Next: Next

End Sub

5. Press F5

Recover main MySQL password

*** If it is possible do this operation in environment without internet access ***

mysqld_safe --skip-grant-tables
mysql --user=root mysql
update user set Password=PASSWORD('new-password') where user='root';
flush privileges;
exit;

mysqld_safe --skip-grant-tables

mysql --user=root mysql

update user set Password=PASSWORD('new-password') where user='root';

flush privileges;

exit;

Linux – smbpasswd without typing password

echo -e "new_passwordnnew_password" | (smbpasswd -a -s $USER)

1	echo -e "new_passwordnnew_password" \| (smbpasswd -a -s $USER)

Windows 7 – Change lost password

In case you are unable to log on your own account and you are using Windows 7 as your operation system there is a way to change your password without knowing it (but not bypass it)

Boot computer from Windows installation drive (DVD/USB)
Select ‘Repair your computer’
Select ‘Command Prompt’

#let's make backup of sethc.exe file on C:\ drive
copy c:\windows\system32\sethc.exe c:\
#copy cmd.exe in place of sethc.exe
copy c:\windows\system32\cmd.exe c:\windows\system32\sethc.exe

#let's make backup of sethc.exe file on C:\ drive

copy c:\windows\system32\sethc.exe c:\

#copy cmd.exe in place of sethc.exe

copy c:\windows\system32\cmd.exe c:\windows\system32\sethc.exe

Reboot computer
When prompt ask as for password for our user then we must hit five (5) times SHIFT key which will trigger command prompt to show up
#type command to change password net user user_name new_password

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#type command to change password
net user user_name new_password
Now we can log on ours user using new password
#recover orginal sethc.exe copy c:\sethc.exe c:\windows\system32\sethc.exe

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#recover orginal sethc.exe
copy c:\sethc.exe c:\windows\system32\sethc.exe

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