Advice 1: How to decrypt encrypted files

Built-in encrypting file system (EFS) is one of the most convenient and reliable tools for the Microsoft Windows operating system. The task of decrypting the encrypted files can be performed by a user, even with not a very high level of computer training.
How to decrypt encrypted files
Instruction
1
The main menu of Microsoft Windows system by clicking "start, and go to "All programs for the operation of decrypting a previously encrypted file.
2
Open the link "Standard and point to "Guide to run the application.
3
Context menu to decrypt the file, folder or drive, click the right mouse button and select "Properties .
4
Go to the tab "Common dialog box and select "Other .
5
Uncheck the box for "Encrypt contents to secure data and click OK to apply the selected changes. Remember that when you run to decrypt folders encrypted files and sub-folders remain encrypted, unless explicitly stated otherwise, and newly created files and folders explains the folder to undergo the procedure of encryption will not be.
6
Download the free tool te19decrypt.exe the official website of the developer of antivirus application Dr. Web and run the executable to perform the operation of decrypting the files encrypted by virus Trojan.Encoder. (This virus is by a ransomware program that encrypts user files and smodlaka after that. While on the system disk remains a text file crypted.txt requiring money transfer different amounts to decrypt the damaged files.)
7
Click "Continue to the main window of the program and agree with the proposal to specify the location of the key file c:crypted.txt manually.
8
Enter the full path to the desired file in the dialog box "Open, and then click OK to confirm the command.
Note
Do not try to delete the text file с:\crypted.txt because the operation of decrypting the encrypted virus files then it becomes impossible!

Advice 2: How to remove file encryption

Windows operating system allows the attributes of the file to specify its encryption. The file will be readable only by this user, whoever he designates as a "recovery agent" or the user having the "public key". If you later need to cancel the encryption, it can be done also in the settings of the file or folder.
How to remove file encryption
Instruction
1
Log in to the operating system on behalf of the user, which is included in one of the categories having access to the encrypted file or folder.
2
Start Explorer press the Win + E keyboard shortcut, or select "Computer" in the main menu of the OS. Directory tree in the left pane, navigate to the desired folder.
3
Access to an encrypted file in another way, using a search system. In Windows 7 and Vista make it very easy: press the Windows key and start typing the name of the file. When the results list appears a reference to the desired object, click it with the right mouse button and select "file Location".
4
Highlight the file and click on the file, right-click or press context menu - it is placed on the keyboard between the right Ctrl and Win buttons. In both cases, the screen will display a context menu in which you need the last line - "Properties". A menu and a separate window opens with the settings file properties.
5
The General tab (it opens by default) is divided into sections. In the lowest placed several checkboxes related to attributes of the file and the button "Other" - click it.
6
In the advanced attributes of the file, remove the checkmark from "Encrypt contents to secure data". Then click the OK button in both Windows open, and the operation is completed.
7
If necessary to cancel the encryption, not for a single file and for all files in a folder should act almost the same. After the first three steps do not select the file, and the desired folder in the left pane of "Explorer". The context menu item "Properties" for the folder and for a file, invoked by clicking the right mouse button and in the properties window of the object you need to repeat the previous two steps.

Advice 3: How to decrypt the data

Decoding data encoded using professional software requires either the availability of the same software package, or a lot of computing power and more advanced programs. More often, however, the encoding used by more accessible means, which decode much easier.
How to decrypt the data
Instruction
1
The web construction is often used the most accessible method of data encryption using built-in functions of programming languages. Among server-side languages PHP is most common today, which is designed to encrypt the function base64_encode. Encoded with its help, data can be decoded using the inverse function base64_decode. If you have the ability in his computer or on the web server to execute PHP scripts, create a simple code:

<?php
echo base64_decode(");
?>

Between the quotation marks function base64_decode place the row of data you want to decrypt. Then save the code in a file with a php extension and then open that page via the browser to blank page you will see the decrypted data.
2
In the absence of the ability to execute php scripts, use the web form on one of the Internet sites link on the page given below. Encrypted data copy and paste in the box above the button Base 64 Decode. After clicking this button, you will see an additional field with the decrypted data - they can also be copied and used at their discretion.
3
If the encryption method is unknown, try to decode the data using one of the programs are able to sort through several algorithms. One such application is called "Stirlitz", does not require installation and is quite popular online, so to find it will not be difficult. The program tries to decrypt the data using the five encryption algorithms.
4
The latest versions of Windows operating systems allow you to encode all the files on a given disk or on all storage media of the computer. If it is necessary to decode data from a file, it is best to trust that the OS itself - turn off encryption in its settings, and Windows will overwrite all the data files in their unencrypted versions. To do this, press the Win button, type BitLocker in the search results list, select "BitLocker drive Encryption". Then click the link "turn Off BitLocker" next to the desired drive. After the system executes this command can open a file with previously encrypted data.

Advice 4: How to encrypt a file archiver 7-Zip

When working with documents you might want them sending someone through the Internet (e.g. through email). However, in some cases the importance of the information contained therein does not allow to do it in the clear. Of course, the solution is encryption, which many associated with something distant and difficult. However, this problem can be easily solved using the free program-a file archiver, for example 7-Zip, creating with it an encrypted archive.
File encryption
You will need
  • - Internet;
  • - Microsoft Windows operating system;
  • program archiver 7-Zip.
Instruction
1
Download and install the. In order to encrypt a document using the program 7-Zip, first you need to install it. Just go to the web site http://7-zip.org/ (section "Download"), choose a computer version of the program (32 or 64 bit) and download it. After the download, run the installer program and follow the instructions — it should not cause You issues.
2
Check file Association. After installation, as a rule, 7-Zip does not change the operating system settings and adds its own section in the Explorer context menu. To make these changes, you must open the menu "start", "Programs", "7-Zip" and select "7-Zip File Manager". In the main menu go to "Tools" and select "Settings...". Next go to the tab "System" and click "Select all". Confirm the changes by clicking "OK" at the bottom of the program window.
File Association
3
Select the document file. You can encrypt any file, the format doesn't matter. To do this, open Windows Explorer and navigate to the file. Next, click the right mouse button and from the appeared menu choose "7-Zip", "Add to archive...".
The file selection for archiving
4
Define settings and start. In the opened window, You can specify the archive name, password to open, set encrypt file names and other settings. Please note that the default encryption of names is disabled, the password for the archive is not specified. After setting all desired settings, You can run the create encrypted archive by pressing the "OK" button in the current window.
Creation settings files
5
Wait for the end. The operation may take some time, depending on the size of the encrypted file compression and other installed settings. At its end next to the encrypted files will appear in the archive with the specified name.
Creating the archive

Advice 5: How to open encrypted rar archive

Probably many people got into a situation where they had certain information in the rar-files, and to open it couldn't, because he was "password protected". However, you can forget the password for the archive, which itself set, but often there are situations when the file is downloaded from the Internet, for the password to the file please to transfer money. To pay in such cases it is not necessary, not even desirable. To open it you can try independently.
How to open encrypted rar archive
You will need
  • Computer, app ARCHPR, Internet access
Instruction
1
Remember, there is no guarantee the decryption of the archive, moreover, the more characters in your password, the less chance for a successful decoding. But the probability to decrypt the files is still there. For this you will need special software. Download from the Internet, ARCHPR app and install it on your computer. Need to download the latest version.
2
Run the program. Select the line Options. In the line select Language "Russian". Now the program interface is in Russian language. In the upper right window of the program is the string "attack". Click on the arrow that is just below this inscription. Opens a menu where select "Bust". Further note on the toolbar in the middle of the program window. Among the options, select "Length".
3
If you know exactly how many characters is the password, enter this number in the line "Minimum password length" and the string "Maximum password length". If you do not know how many characters in the password, check the value of "1" in the minimum row and "7" maximum. If the number of characters is greater than seven, to decrypt this file would be virtually impossible.
4
Then in the top window select "File" and specify the path to the file you want to decrypt. This will start the decryption process. Remember, even on the most powerful computers the duration of the decryption process of the file may exceed ten hours. At the end of the process a window will appear with the result of the program. If the program will be able to decrypt the file, this window will be and password.
5
If the program fails to find the password as the method of operation of the program, select "dictionary". Then the process is the same as in the first case. The only parameter is the "Length" setting is unnecessary, as it in this case is not available.
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