Ensure to keep your power cord plugged in during these processes..
You should backup any files/folders you may want to keep
Plug in and External harddrive, thumbdrive, etc...
Then choose the option to "Rescue Data"
You are going to have the choose to either
Easy Backup
- This option automatically saves all files which can be rescued on the hard disk to an external hard disk.
File Selected
- This option saves the files that you specify to an external hard disk drive, a removable media, or an optical disc(DVD, etc.).
After you have saved what you need. Disconnect any peripheals.. Such as external drives, etc..
I would go ahead and choose to "Restore C: Drive"
This should get you back to an Operating system you had when you first got the machine
Get all High priority updates from Windows Updates, let me know how it goes