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Windows 7 "Shutdown" not working after CPU upgrade

I upgraded from the Intel Core i3-2100 to a Intel Core i5-3570K. Everything went smoothly except one little quirk.Windows 7 will not Shutdown, Restart or Sleep.

When Shutdown or Restart are selected, I get the shutdown screen, but it hangs and then freezes and never shuts down. When I select Sleep, the monitor shuts off, but the computer remains on and running.

Manually shutting down with the power button works ok.

I'm thinking a bios update and Windows repair disc are the next steps to take, but I would have to ask around for a disc and I wouldn't look forward to a bios update.

Has anyone seen this before?

Motherboard: Gigabyte GA-Z77X
5 answers Last reply Best Answer
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  1. Best answer
    clear your cmos, also grab ccleaner and run the registrycleaner and file cleaner and see if it helps.
  2. mauller07 said:
    clear your cmos, also grab ccleaner and run the registrycleaner and file cleaner and see if it helps.


    Thanks for the reply.

    I followed those steps and unfortunately the problem persists.
  3. Updated BIOS to latest version (F21). Problem persists.
  4. Fixed using simple troubleshooting I should have tried from the beginning. Removed all USB devices and speakers. Plugged in an alternate mouse/key and shutdown worked. Reconnected everything one by one. I may have had something plugged into a USB 3.0 that didn't belong such as external hdd.
  5. sounds like you may need to update the firmware on the usb 3, see if theres an update available for it and a windows 8.1 driver.
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