Windows 7 32bit ultimate Freezes after login screen

I would like if someone can please help me out with an issue i am currently facing. I try to start up windows after entering my password at the screen it loads for a while then i am faced with my desktop background and icons show up. If i move my mouse cursor to the bottom taskbar to click start it has the loading circle. If i click anything on my desktop that wont work either. i tried several things but i dont want to fresh install as i have tons of data and files that i need to keep otherwise i would have just went ahead with the fresh install. The things i tried were

1. tried system repair, but i get this "windows cannot repair this computer automatically"

2. I just tried sfc/scannow and I got the following message:
There is a system repair pending which requires a reboot to complete. Restart windows and try sfc again.

3. i then did the scanow offline command i found it said scanning and then after 20 min i get this "SFC Windows Resource Protection could not perform the requested operation FIX''

4. Memory tool but i can't see results because as soon as i sign in it freezes

5. ctrl,alt ad del dont work screen goes black then i wait till a message pops up and click enter then it brings me back to the desktop

6. i scanned pc with avg and malawarebytes no viruses.

Like i said all help is very much appreciated. I called dell but my protection ran out 2 weeks ago and they want 270 for software help i really dont have that type of money as the mortgage gets taken out and im a little behind if not i would have went that option. Anyway help is appreciated thanks. If you need more infor write in the thread and ill try as i cant really access anything on the pc.

the computer im using is a dell xps 420
ram 4gb
hdd 1tb

update: its still loading very very slow i need to fix this asap please help.