Reset Windows 7 Windows Update

Windows Update failed to install unknown error. This is to clean up Windows Update, the patches might already been installed and still shows up in the list.

Reference: https://support.microsoft.com/en-us/kb/971058

net stop bits
net stop wuauserv
net stop appidsvc
net stop cryptsvc

rmdir /s %systemroot%\SoftwareDistribution
rmdir /s %systemroot%\system32\catroot2

net start bits
net start wuauserv
net start appidsvc
net start cryptsvc

Brother MFC Maintenance Codes

Press Menu * 2 8 6 4
"Maintenance" appears
01 Parameter Init
11 Configuration List
55 Scan Area Set
66 Media Sensor Adj (Left: 10, Right: 10)
74 Country Code
77 Status Page
88 AMS00
91 Parameter Init
99 Exit

Reset Dell BIOS password

http://www.techspot.com/vb/topic18780.html