From recently I can't update windows and I ran MS Fix it Center and it shows that service registration is missing or corrupt.
This is a correction to Method 2 - How to fix the Windows Update service problem:
@ECHO OFF
SET PATH=%PATH%
FOLLOW THESE STEPS:
1.) MOVE MOUSE POINTER TO THE "WINDOWS START ICON." THIS LOCATION IS AT THE BOTTON LEFT CALL "TASKBAR"
2.) RIGHT-CLICK THE MOUSE FOR THE POP-UP MENU.
3.) SELECT "RUN"-THEN TYPE IN THE FOLLOWING COMMAND "MSCONFIG.EXE" THEN CLICK ON "OK"
4.) SELECT THE TOP Toolbars "BOOT," THEN UNDER "BOOT OPTION" SELECT THE OPTION "SAFE BOOT" FOLLOW BY "OK"
5.) RESTART YOUR "PC" FOR THE "SAFE MODE." by Selecting "OK"
6.) WHEN YOUR "PC" RESTART'S YOU WILL THEN BE LOGGING IN THE "SAFE MODE"
7.) RIGHT-CLICK ON "WINDOWS START ICON." THIS LOCATION IS AT THE BOTTON LEFT CALL "TASKBAR"
8.) LEFT-CLICK ON THE "COMMAND PROMPT (ADMIN)
9.) Type, each one of the following at the "COMMAND PROMPT"
a.) NET STOP WUAUSERV press <return key>
b.) NET STOP CRYPTSVC press <return key>
c.) NET STOP BITS press <return key>
d.) NET STOP MSISERVER press <return key>
e.) REN C:\Windows\SoftwareDistribution SoftwareDistribution.old
f.) REN C:\Windows\System32\Catroot2 Catroot2.old
10.) REPEAT STEPS 1-3
11.) SELECT THE TOP Toolbars UNDER "STARTUP SELECTION" SELECT "NORMAL STARTUP"
12.) SELECT THE TOP Toolbars "General," THEN UNDER "Startup Selection" SELECT THE OPTION "Normal startup"
13.) RESTART YOUR "PC" FOR THE "NORMAL MODE." by Selecting "OK"
14.) RIGHT-CLICK ON "WINDOWS START ICON." THIS LOCATION IS AT THE BOTTON LEFT CALL "TASKBAR"
15.) LEFT-CLICK ON THE "COMMAND PROMPT (ADMIN)
16.) Type, each one of the following at the "COMMAND PROMPT"
a.) NET START WUAUSERV press <return key>
b.) NET START CRYPTSVC press <return key>
c.) NET START BITS press <return key>
d.) NET START MSISERVER press <return key>
17.) When this process is completed - close the "COMMAND PROMPT" by typing the following:
"EXIT" press <return key>