Free overwrites software for windows

SunoSoft Overwrite Protect 2 brings you an easy to use and convenient file manager tool. Software package SunoSoft Overwrite Protect Free provides you with easiest file managing while downloading all kinds of data. Just save your files in temporary folder of your choice and leave everything else to be done by this program. It's also useful for copying pictures from your digital camera, for scanning documents and helps you with managing of archived data on CDs and DVDs.

For those who are used to save documents with the same file name over and over again (NewDocument.doc or NewPicture.jpeg) is this package of vital importance.

Enhancements:

• Data encryption is enabled
• Metadata for the downloaded files can be loged for fast searching
• New tool: file sequence for the pictures and movies
• New GUI

Sorted is a file utility which sorts selected files into folders of predefined size.
It allows you to fetch files from multiple directories & sub directories, fetch & fetch again to create custom lists, fetch specific files or file types, list full path or just file name, easily launch any file in list, sort files into folders of any size (eg folders of 700MB, 1.44MB, 10GB), easy selection/deselection of files to sort, choose how much of the original path to include (depth), never overwrites files or folders but adds increment postfix to name, randomize sort for unique compilations, and has a step-by-step easy to use interface.
This is a handy utility for preparing files and/or folders to be burnt on to CD-Rs, for ordering files within folders ? even for gathering together files of the same type.
If you have a CD burner and regularly burn collections of MP3 files, or digital camera images, then Sorted is probably exactly what you want.

Protects your computer against 90%+ of Buffer Overflow attacks The Comodo Memory Guardian Beta will protect your computer against 90%+ of Buffer Overflow attacks. With this solution, users are protected from "drive by" download attacks whereby a website injects malware onto a users PC. It is expected that this solution will be integrated into the Comodo Firewall toward the end of the year.
In computer security and programming, a buffer overflow, or buffer overrun, is a programming error which may result in a memory access exception and program termination, or in the event of the user being malicious, a possible breach of system security.
A buffer overflow is an anomalous condition where a process attempts to store data beyond the boundaries of a fixed-length buffer. The result is that the extra data overwrites adjacent memory locations. The overwritten data may include other buffers, variables and program flow data and may cause a process to crash or produce incorrect results. They can be triggered by inputs specifically designed to execute malicious code or to make the program operate in an unintended way. As such, buffer overflows cause many software vulnerabilities and form the basis of many exploits. Sufficient bounds checking by either the programmer or the compiler can prevent buffer overflows. [Wikipedia]

Eraser 5.86 is an application used to eradicate sensitive data from your hard drive by overwriting it. The patterns used for overwriting are based on Peter Gutmann's paper Secure Deletion of Data from Magnetic and Solid-State Memory and are selected to effectively remove magnetic remnants from the hard drive.

Other methods include the one defined in the National Industrial Security Program Operating Manual of the U.S. Department of Defence, and overwriting with pseudorandom data. You can also define your own overwriting methods.

Enhancements: includes unspecified updates.

Securely overwrite your sensitive files and cleanse your free space of previously deleted files One feature of Windows NT/2000s (Win2K) C2-compliance is that it implements object reuse protection. This means that when an application allocates file space or virtual memory it is unable to view data that was previously stored in the resources Windows NT/2K allocates for it. Windows NT zero-fills memory and zeroes the sectors on disk where a file is placed before it presents either type of resource to an application. However, object reuse does not dictate that the space that a file occupies before it is deleted be zeroed. This is because Windows NT/2K is designed with the assumption that the operating system controls access to system resources. However, when the operating system is not active it is possible to use raw disk editors and recovery tools to view and recover data that the operating system has deallocated. Even when you encrypt files with Win2Ks Encrypting File System (EFS), a files original unencrypted file data is left on the disk after a new encrypted version of the file is created.
The only way to ensure that deleted files, as well as files that you encrypt with EFS, are safe from recovery is to use a secure delete application. Secure delete applications overwrite a deleted files on-disk data using techiques that are shown to make disk data unrecoverable, even using recovery technology that can read patterns in magnetic media that reveal weakly deleted files. SDelete (Secure Delete) is such an application. You can use SDelete both to securely delete existing files, as well as to securely erase any file data that exists in the unallocated portions of a disk (including files that you have already deleted or encrypted). SDelete implements the Department of Defense clearing and sanitizing standard DOD 5220.22-M, to give you confidence that once deleted with SDelete, your file data is gone forever. SDelete is presented with full source code so that you can verify yourself that it works as advertized. Note that SDelete securely deletes file data, but not file names located in free disk space.
SDelete is a command line application which takes a number of options. In any given use, it helps you delete one or more files and/or directories, or to cleanse the free space on a logical disk. SDelete accepts wild card characters as part of the directory or file specifier.
Usage: sdelete [-p passes] [-s] [-q]
sdelete [-p passes] -z [drive letter]
-p passes
Specifies number of overwrite passes
-s
Recurse subdirectories
-q
Dont print errors (quiet)
-z
Cleanse free space
Securely deleting a file that has no special attributes is relatively straight-forward: the secure delete program simply overwrites the file with the secure delete pattern. What is more tricky is securely deleting Windows NT/2K compressed, encrypted and sparse files, and securely cleansing disk free spaces.
Compressed, encrypted and sparse are managed by NTFS in 16-cluster blocks. If a program writes to an existing portion of such a file NTFS allocates new space on the disk to store the new data and after the new data has been written, deallocates the clusters previously occupied by the file. NTFS takes this conservative approach for reasons related to data integrity, and in the case of compressed and sparse files, in case a new allocation is larger than what exists (the new compressed data is bigger than the old compressed data). Thus, overwriting such a file will not succeed in deleting the files contents from the disk.
To handle these types of files SDelete relies on the defragmentation API. Using the defragmentation API SDelete can determine precisely which clusters on a disk are occupied by data belonging to compressed, sparse and encrypted files. Once SDelete knows which clusters contain the files data, it can open the disk for raw access and overwrite those clusters.
Cleaning free space presents another challenge. Since FAT and NTFS provide no means for an application to directly address free space, SDelete has one of two options. The first is that it can, like it does for compressed, sparse and encrypted files, open the disk for raw access and overwrite the free space. This approach suffers from a big problem: even if SDelete were coded to be fully capable of calculating the free space portions of NTFS and FAT drives (something thats not trivial), it would run the risk of collision with active file operations taking place on the system. For example, say SDelete determines that a cluster is free, and just at that moment the file system driver (FAT, NTFS) decides to allocate the cluster for a file that another application is modifying. The file system driver writes the new data to the cluster, and then SDelete comes along and overwrites the freshly written data: the files new data is gone. The problem is even worse if the cluster is allocated for file system metadata since SDelete will corrupt the file systems on-disk structures.
The second approach, and the one SDelete takes, is to indirectly overwrite free space. First, SDelete allocates the largest file it can. SDelete does this using non-cached file I/O so that the contents of the NT file system cache will not be thrown out and replaced with useless data associated with SDeletes space-hogging file. Because non-cached file I/O must be sector (512-byte) aligned, there might be some left over space that isnt allocated for the SDelete file even when SDelete cannot further grow the file. To grab any remaining space SDelete next allocates the largest cached file it can. For both of these files SDelete performs a secure overwrite, ensuring that all the disk space that was previously free becomes securely cleansed.
On NTFS drives SDeletes job isnt necessarily through after it allocates and overwrites the two files. SDelete must also fill any existing free portions of the NTFS MFT (Master File Table) with files that fit within an MFT record. An MFT record is typically 1KB in size, and every file or directory on a disk requires at least one MFT record. Small files are stored entirely within their MFT record, while files that dont fit within a record are allocated clusters outside the MFT. All SDelete has to do to take care of the free MFT space is allocate the largest file it can - when the file occupies all the available space in an MFT Record NTFS will prevent the file from getting larger, since there are no free clusters left on the disk (they are being held by the two files SDelete previously allocated). SDelete then repeats the process. When SDelete can no longer even create a new file, it knows that all the previously free records in the MFT have been completely filled with securely overwritten files.
To overwrite file names of a file that you delete, SDelete renames the file 26 times, each time replacing each character of the files name with a successive alphabetic character. For instance, the first rename of "foo.txt" would be to "AAA.AAA".
The reason that SDelete does not securely delete file names when cleaning disk free space is that deleting them would require direct manipulation of directory structures. Directory structures can have free space containing deleted file names, but the free directory space is not available for allocation to other files. Hence, SDelete has no way of allocating this free space so that it can securely overwrite it.

PermanentFileDelete 1.0.0.4 is a powerful and popular utility which overwrites all data 10 times before deleting, which erases any type of document and file, so not even the most advanced recovery software will be able to recover the deleted documents. Deleting documents then emptying the Recycle Bin does not mean that they are gone for good. There are a host of undelete tools that can recover these documents.

As well as being easier to use, Permanent File Delete is only 602 KB in size and will run on all of the windows operating systems keeping download times low and making it very portable.

Enhancements: Version 1.0.0.4 includes software now may be controlled by the command line.

Accurately reports employee time/attendance to Payroll & HR and eliminates hours of payroll calculations. This software is a Biometric Time Clock & Attendance tracking system and it will allow you to replace the typical time clock used to track employees attendance.
Instead of employees punching a time-card, they can simply insert their hand into the reader and enter their employee number.
PayPunch does the rest! PayPunch ROI is absolutely outstanding and it can pay for itself in as little as 2-3 months. How will it save your company money?
PayPunch is a simple solution that pays for itself over and over again by allowing your company to:
- Automate payroll processing
- Eliminate buddy-punching
- Eliminate time-cards
- Eliminate early punch-ins
- Eliminate unauthorized overtime
- Eliminate hours of payroll calculations
- Accurately reports employee time/attendance to Payroll & HR
Main features:
- Daily and weekly statistics and reports
- Manual adjustments (by Authorized Personnel only)
- Shifts schedule support
- Attendance exceptions tracking
- Multi-factories support
- Multi-devices support
- Vacation tracking
- Paid-holidays tracking
- Multi-level password protection
- Employees Records Locking to prevent unintended data overwrites
- Flexible configuration of the rounding rules and grace periods
- Attendance data export to Payroll software
- Employee picture capturing from the video device or file
- Fully customizable to accommodate different business rules
- Web access
System requirements:
- IBM compatible CPU with 300 MHZ Intel Pentium processor or faster
- 64 MB RAM (256 MB recommended)
- 50 MB free hard disk space
- 800 x 600 screen resolution with 16-bit high color or above
- 10/100 megabit network interface card
- Windows compatible printer
- For Ethernet connected readers: TCP/IP Protocol must be installed
- For Directly connected readers: at least one available Serial COM Port
- For Telephone line connected readers: modem and a telephone line
- Microsoft SQL Server 2000 database (only for PayPunch Enterprise)
Version restrictions:
- 50 users limit

Deleting a file with Windows or with other programs will leave the file contents on your hard disk, easy to be recovered by anyone that has access to your computer. East-Tec File Shredder securely destroys (shreds) sensitive and private files beyond recovery. Simply drag and drop files to the shredder icon on your desktop, or select the files you want to destroy directly from the Windows Explorer right-click menu. Your sensitive files will be gone for good and nobody will be able to recover your valuable corporate trade secrets, business plans, personal files, photos or confidential letters. East-Tec File Shredder overwrites and verifies the destruction of every bit of the file, making recovery impossible.