MacAppStuff Shredder (for Windows) will securely erase files, meaning that if they are ever recovered (by specialist software) their content will be useless. For added security, data can be overwritten up to 35 times and the name and date of the file/folder changed to random values. Securely erase files and folders.
You will have the possibility to add either files or folders to be securely wiped from your computer. Files will have their content overwritten and then the file will be deleted. Any folders in the list will be searched and any files residing in them will be shredded. The folder will then be deleted.
If you choose to randomly rename and re-date files/folders, this will occur just prior to deletion. These two options are for added security. This ensures that it is impossible to categorise/understand any deleted files/folders which may later be recovered.
Dates are changed to random values over 200 years from the current date of your computer.
Limitations:
* You can only add 1 item to be shredded and only 1 pass is allowed when overwriting data

The license of this software is Free Trial Software, the price is GBP 5.99, you can free download and get a free trial.