Just Curious - Why do Microsoft updates require a reboot?

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mjslakeridge

mjslakeridge

Splendid
Mar 6, 2013
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I rarely turn off my computer. I have it set to go into Sleep Mode after 30 minutes of activity. But when Microsoft updates occur, the computer will reboot after giving a warning (I think it allows 15 minutes to save files), but there appears to be no option to not have it reboot. At least with Windows Media Center, you do get the option to postpone. I am running Windows 8 Pro, with automatic updates turned on.
 
Solution
G
Some do, some don't.

There are 2 copies of the OS. One's on your drive; the other's in memory. Update modifies the code on your drive. Sometimes, you can do a code hot-swap...modify the executing code on the fly. Other times, tho, like if there's a change to memory layout/addressing, you can't. So in order to actually get the update *running*...you have to reboot.
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USAFRet

USAFRet

Titan
Moderator
Mar 16, 2013
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You can cause it to delay an update until you direct it to.

In Windows Update, Change Settings
"Download updates but let me choose whether to install them"

Why is a reboot needed? Sometimes, the update contains system files that can't be 'changed' on a running system. It needs to reboot to complete the process.
 
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G

gangrel

Distinguished
Jun 4, 2012
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19,060
Some do, some don't.

There are 2 copies of the OS. One's on your drive; the other's in memory. Update modifies the code on your drive. Sometimes, you can do a code hot-swap...modify the executing code on the fly. Other times, tho, like if there's a change to memory layout/addressing, you can't. So in order to actually get the update *running*...you have to reboot.
 
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