Windows 7: Problems regarding Startup Repair and System Restore

Hello.

I recently downloaded a damaged file, which caused my computer (not this one) to be unable to start up normally.



The computer now boots up in Startup repair, which is unable to repair my computer "automatically" and when I then click "View advanced options for system recovery and support" and go to the "System restore" tab and choose a Date and time for the restoration, it tells me that "There is not enough free space to restore the disk". I seem to have no options to try and sort out the missing space on the harddisk, which should be unnecessary because I am pretty sure there is still alot of disk space on the C: harddrive.
I dont know if this is a problem you have to solve through the Command prompt..?

Any help appreciated.

Welcome to the Windows 7 Forum.
Please fill out your computer specs. To have a idea of what is needed check my specs or others, lower left corner of post. What damaged file did you download and from where?