Macbook Pro is slow, freezing all the time and has Wi-Fi problems
Hello!
My Macbook Pro started acting kinda strange a couple of weeks ago. It's slow, freezing all the time and constantly connecting and reconnecting to the Wi-Fi network after around half a minute of usage.
Here is the story, as far as I know:
In the start of 2014, pup-up boxes started popping up on my Macbook Pro. They said that I had to enter a password for the Keychain to gain access to a service or something. The odd thing about it was that I had never set up my iCloud Keychain. It just started appearing without me knowing why. Unfortunately, I didn't know the password for this due to the fact that I never set it up. I tried every password combination that could possibly work, but I didn't get through it. I tried different solutions, but nothing worked out. I solved it by simply making a new user account on my Mac. I used this for like 1 month before the whole Mac with all its user started messing itself up.
It might be worth to notice that this secondary-user didn't require a password to log in, so when I closed my Macbook and re-opened it, it would continue where it was left off. This might have been the reason for the Mac sometimes to get really warm while being in my backpack, which might also have caused the problem. I am not sure though.
After using the secondary user for a while, the Mac started acting strange again. This time it was something different. One day, my girlfriend started up my Macbook Pro and noticed that it was extremely slow. I assumed it was just in the need of a restart, but that wasn't it. The computer started freezing all the time at first. It froze when I clicked something in an application, and I had to wait like 10 seconds for it to go back to normal. If I was typing anything on Facebook, it would freeze, but I could still use any other tab of the browser without any problems. However, they would freeze to if I did anything special on other websites. Every other program would also freeze for reasons like typing or clicking on anything.
After a short while, it started being really slow during startup and use. A few days ago, my Macbook Pro also started disconnecting from Wi-Fi networks while trying to load pages. It doesn't disconnect every time, but it does sometimes. It tries to reconnect after that, and if it succeed's, everything is back to normal for a while.
Additionaly, the battery have been draining faster, and when it reached 0%, the computer turned off and closed all the open programs. Normally it has entered Sleep Mode, but not anymore.
Do any of you have any clue what the issue might be?
I have done the following:
- Reset PRAM
- Restore to system defaults
- Installed AVG Antivirus and scanned it
- Repaired and verified disk in Disk Utility.
- Uninstalled Adobe Flash Player.
I hope anyone can help me! I really need my computer for educational use!
MacBook Pro, OS X Mavericks (10.9.2)