32.Forgot BIOS Password ...............................?

Do the following :
1. Open the CPU
2. Now, observe the motherboard.
3. You notice a coin like silver Battery(3V).
----------------------------------------- NOTE -------------------------------------------------
This battery is 24 x 7 power supply for the BIOS, which is used to run the system clock will the main power is off. It also initiates the booting process when power is switched on.
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4. Remove the battery from the motherboard.
(It is safe to remove the Battery)
5. Wait 30 seconds and place the battery back on the motherboard.
6. Now, when you start your system you won't be prompted for the BIOS password. 

32.Message Before Windows Start

 If you want to leave message to other when they open the computer then this tricks helps you out.
1. Open or Run Regedit.exe (Registry Editor) as administrator
How? Type Regedit in Start Menu Search. Press CTRL-SHIFT+Enter or simply Right-Click and Run as administrator


2. Go to the Path below:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
3. Find these strings:
legalnoticecaption
legalnoticetext
Double-Click Any of them and write any Greetings, Reminders or Any Messages. To restore, just remove your messages.
Easy?