why do computers need to reboot after an update

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I thought more recent OS had ways to update files currently in use and not require reboots.
Corporate policy of rebooting once a week and forcing it is killing me: I usually have tens of excel windows interlinked, and having to reboot daily just saps my will to live….

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24 Answers

Anonymous 0 Comments

If the update replaces drivers then Windows needs to go through the boot process to load the new ones into memory and use them. Otherwise the could be a mixture of updated and not updated code loaded with strange results or just the supposedly critical update not taking effect until a reboot. Besides what we typically think of as a device driver, the system contains drivers for the network stack and the file system that often get updated.

Not every update might strictly require a reboot, but it’s simpler to just reboot unconditionally. It’s also easier to identify a bugged update immediately.

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