Hello littleflower and welcome to Seven Forums.
I have a Vaio VPCEB47GM. If your computer has an ASSIST button:
1. With the computer OFF, press the ASSIST button to launch Vaio Cae Rescue
2. Click Start Recovery Wizard
3. Select Tools and click Start Advanced Recovery Wizard
4. Follow the on screen prompts to restore your Vaio to factory specs
If your computer does NOT have an ASSIST button:
1. Turn the computer on and
immediately start clicking (and keep clicking) the F10 key
2. If the Edit Boot Options screen appears, simply click Enter
3. Select Start Recovery Wizard
4. Select Tools and click Start Advanced Recovery Wizard
5. Follow the on screen prompts to restore your Vaio to factory specs
If you created Recovery Disks:
1. Make sure your Vaio is set to boot from CD/DVD optical drive as first choice
2. With computer ON, insert Disk #1, shutdown computer, restart and let computer boot from Disk #1
3. Windows Boot Manager screen will display
4. Use up/down arrow keys to select Start Vaio Care Rescue and click Enter
5. Select Start Recovery Wizard
6. Select Tools and click Start Advanced Recovery Wizard
7. Follow on screen instructions including when to insert Disk #2, #3, etc
If none of this works for you, one of the Forum experts prepared these troubleshooting guides.
Troubleshooting Windows 7 Failure to Boot Troubleshooting Steps for Windows 7
Or you could use this opportunity to clean install Windows 7 and eliminate the factory bloatware that slows a computer down. I did this to my Vaio and it made a big difference.
Clean Reinstall - Factory OEM Windows 7