Every time I restart my MacBook a bunch of popups come up asking for passwords to different programs. How can I stop this?

What are these programs specifically? Are they asking for your admin account password or for your Apple ID password or a serial number to show ownership of the software?

These are all elements of your OS X system requesting permission to use information in your Keychain. I would suggest you just click on the OK button after which you should not see those prompts again.

None of those processes are viruses or other forms of malware. They are all benign. Most their individual sources are easy to determine just by the names: Messages, Calendar, Address Book/Contacts, iCloud, and user accounts.

In your Utilities folder click on Keychain Access. Then follow this procedure:

1. Open Keychain Access (located in Applications/Utilities)

2. Go to the "Keychain Access" menu and select "Preferences"

3. Click the "First Aid" tab

4. Make sure the "Synchronize login keychain password" box is checked

5. Close the Preferences window

6. Go to the "Keychain Access" menu and select "Keychain First Aid"

7. Enter your username and password

8. Click the "Repair" button

This should fix your Keychain and tie your keychain's password to your admin password. This may fix the problem of the repetitious password requests.

If the above isn't successful then try:

Persistently asked for stored passwords If you are persistently asked for passwords in various applications that you have specified should be remembered in a keychain, your "login" keychain may not be active for one reason or another.

Navigate to ~/Library/Keychains/ (this is the Library folder inside your user's home folder). Find the file named "login.keychain" and double-click it.

Failing that, select the "login" keychain within the Keychain Access application and make sure it is the default keychain by going to the "File" menu and selecting "Make 'Login' Default"

how do i get into "library" on macbook pro??

i cant find it ANYWHERE!!