Sony VGN-TZ100 Benutzerhandbuch

How do I increase the disk space of the C drive?

You can increase the disk space of the C drive by deleting the VAIO Value-added contents from the recovery partition.

To delete the VAIO Value-added contents

Insert the recovery disc into the optical disc drive while your computer is on, turn off the computer, and then turn it on 
once again.
If you are using an external optical disc drive, press the F11 key when the VAIO logo appears during the startup process.
The System Recovery Options window appears.

Use the recovery disc you created upon delivery of your computer.

Select your keyboard layout from the drop-down list and click Next.

Select your operating system and click Next.

Click VAIO Recovery Center.
The VAIO Recovery Center window appears.

Click Restore Complete System and click Start.

Click Next.

Select the No check box and click Next.

Follow the on-screen instructions.