« Reply #19 on: Thursday 07 April 16 22:48 BST (UK) »
Updates don't jam, they just effectively end up queued and show as failed or cancelled at the end of the process. Its rare for an update on Win7 to require a reboot before another is installed, it can happen but tends to be for things like service packs or major updates. That said, as Mike has also said, you just let it get on with it and they will eventually clear but it may mean several attempts and reboots. However, if an update is superceded by a later version, it will show as failed and then disappear next time a check for updates is done (or often after the reboot).
There is a way of forcing a PC to reconnect to Windows Update by running a couple of commands from a command prompt. That resets it and then the second command tells it recheck with windows update. This definitely works on Win7 and earlier, and may work on later versions I just haven't got a later O/S at present.
If you click on Start, select All Programs, then select Accessories.
Click on Command Prompt (a black window will appear with a prompt to type)
At the prompt type:
wuauclt /resetauthorization
(there is a space between the t and the /)
then press return, it should have a moment return to the prompt.
Then type:
wuauclt /detectnow
(again there is a space between the t and the /)
press enter
What this does is tell Windows Update to run a full check with Microsoft as to what updates are required. Its possible one of the updates causing the problem isn't required but later ones won't install either because of it.
It may take a while to complete but then it will tell you in Windows Update the number of important updates required.
Sometimes its necessary to change WU to automatically install updates, if you don't already have it set to this, before running these commands, and can then switch back after they have completed (assuming you don't want it to automatically install them).
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