Don't know of any way, with what you have now, of restoring Windows 7. With the Recovery partition, it was possible. Since you removed that, now, it is not. I understand that you accidentally removed the OS partition, but why on earth would you remove the Recovery partition -- KNOWING that you had no way to restore Windows 7?
To restore the OS, you need either a Windows 7 installation DVD (any version will do) or you need to contact Toshiba and see if they will sell you a set of full-restore media.
Either of those, of course, will result in ALL your Windows 7 files and settings being gone. However, if you're willing to do some work, and spend some money, you may be able to recovery your files. IF so, read on; if not, we're done...
If you've got this far, then let's continue ...
First thing you must do is STOP using the current hard drive. Period. Every time you use the drive, you worsen the chance of recovering anything from it.
Second, you will need to be able to (1) remove the drive from your PC and (2) hook it up to another PC. This is because you need to have another drive available as a target drive for file recovery.
If you have those, then using the other PC, download and install GetDataBack for NTFS from Runtime Software. The trial version is free.
Launch that and set it in deepest discovery mode -- and let it run overnight.
In the morning, check to see what it found. If it found your files, and if they appear to be OK, then revisit the Runtime Software site, purchase a license for the product, download and install the license. This will activate the recovery feature and you can now copy the files from your drive to the drive on the other PC.
There are also partitioning products (like Partition Wizard) that may be able to recovery the entire partitions -- but I haven't used those and defer to others on this forum who have ...