Re: when i open quickbooks i get an install updates will not install
Try Resetting the Updates
Open the Update Window (Help; Update), go to the Update Tab and by the Update button you'll see a Check option to Reset Update. Check it and then Click on Updates.
You'll get a warning that you're about to download all the updates again and it may take longer than usual. Click OK. When the Update has finished you'll probably get a Pop-Up to close QBs (even if you don't, do it anyway). There will probably be some other Backup, etc. messages, so just follow the prompts and close and reopen QBs.
NOTE: If you don't have any "Services" with QBs (Merchant Acct, etc.), you will always see an Error #404 in the updates for Service Messages. One of the things Intuit should have fixed years ago, but never did.