[Source:Internet]
After beta version 2, Vista deleted some Error message that are thouht to be too aggresive for the user.... some of them are...
1) Smash forehead on keyboard to continue.
2) Enter any 11-digit prime number to continue.
3) Press any key to continue or any other key to quit.
4) Press any key... no, no, no, NOT THAT ONE!
5) Press Ctrl-Alt-Del now for IQ test.
6) Close your eyes and press escape three times.
7) Bad command or file name! Go stand in the corner.
8 ) This will end your Windows session. Do you want to play another game?
9) Windows message: "You have just made a type mismatch! Shall I format your brain?"
10) This is a message from God: "Rebooting the universe, please log off."
11) Keyboard not attached. Press F1 to continue.
12) BREAKFAST.SYS halted... Cereal port not responding.
13) COFFEE.SYS missing... Insert cup and press any key.
14) CONGRESS.SYS corrupted... Re-boot Washington D.C? (Y/N)
15) File not found. Should I fake it? (Y/N)
16) Bad or missing mouse driver. Spank the cat? (Y/N)
17) Runtime Error 6D at 417 A:32CF: Incompetent User.
18 ) Error reading FAT record: Try the SKINNY one? (Y/N)
19) WinErr 547: LPT1 not found... Use backup... PENCIL & PAPER.
20) User Error: Replace user.
21) Windows VirusScan 1.0 - "OS/2 found: Remove it? (Y/Y)"
22) Backup not found: (A)bort (R)etry (P)anic
23)Internet Explorer Corrupt, replace with other browser?
24)Cannot shutdown system, shutdown yourself.
25)This is america. please confirm bill gates that your OS cannot works in other nation.
26)Partition damaged. shall windows takeover the linux partition?
27)Your windows is an EMO. please cut yourself.
28 )Windows cannot work in these environment. please remove the other OS from your system.
29)Windows Vista Installation shall now remove XP from your system, you may want to save your data first in case of installation problem.
30)Windows cannot run 16 bit application, please refer to wowexec.exe you've just remove in case you think it's a virus.
After beta version 2, Vista deleted some Error message that are thouht to be too aggresive for the user.... some of them are...
1) Smash forehead on keyboard to continue.
2) Enter any 11-digit prime number to continue.
3) Press any key to continue or any other key to quit.
4) Press any key... no, no, no, NOT THAT ONE!
5) Press Ctrl-Alt-Del now for IQ test.
6) Close your eyes and press escape three times.
7) Bad command or file name! Go stand in the corner.
8 ) This will end your Windows session. Do you want to play another game?
9) Windows message: "You have just made a type mismatch! Shall I format your brain?"
10) This is a message from God: "Rebooting the universe, please log off."
11) Keyboard not attached. Press F1 to continue.
12) BREAKFAST.SYS halted... Cereal port not responding.
13) COFFEE.SYS missing... Insert cup and press any key.
14) CONGRESS.SYS corrupted... Re-boot Washington D.C? (Y/N)
15) File not found. Should I fake it? (Y/N)
16) Bad or missing mouse driver. Spank the cat? (Y/N)
17) Runtime Error 6D at 417 A:32CF: Incompetent User.
18 ) Error reading FAT record: Try the SKINNY one? (Y/N)
19) WinErr 547: LPT1 not found... Use backup... PENCIL & PAPER.
20) User Error: Replace user.
21) Windows VirusScan 1.0 - "OS/2 found: Remove it? (Y/Y)"
22) Backup not found: (A)bort (R)etry (P)anic
23)Internet Explorer Corrupt, replace with other browser?
24)Cannot shutdown system, shutdown yourself.
25)This is america. please confirm bill gates that your OS cannot works in other nation.
26)Partition damaged. shall windows takeover the linux partition?
27)Your windows is an EMO. please cut yourself.
28 )Windows cannot work in these environment. please remove the other OS from your system.
29)Windows Vista Installation shall now remove XP from your system, you may want to save your data first in case of installation problem.
30)Windows cannot run 16 bit application, please refer to wowexec.exe you've just remove in case you think it's a virus.
If you asked me to choose the funniest one, I wouldn't know which to pick up. 
