RAR and ZIP both support encryption.

To encrypt a file, before compression you must specify a password, or directly in the compressed file in the specified name and parameters dialog.

In command line mode, use the switch-p [password].

In the WinRAR graphical interface, you enter the password you can press Ctrl + P or in the File menu, select "Set default password" command.

Another way is to click the lower left corner of the WinRAR window to the bottom of the key icon. In the compressed file name and parameters dialog "Advanced Options" group, press the "Set Password" button to enter the password.

Different from ZIP, RAR format not only allows the data, and other compressed file that can be perceived areas: file name, size, attributes, comments and other blocks can be encrypted. If you wish to do so, you need the password dialog box set "Encrypt file names" option, or use the command line mode-p [password] switch-hp [password]. Encrypted files in this way, even if no password can not see the file list.

When no longer needed, do not forget to delete the password. Otherwise, you may then encrypt the other compressed files, but do not want to use the same set of passwords. To delete a password, just enter an empty string to replace the original password, or to close WinRAR and restart again. When a password is present, the key icon is red, otherwise it is yellow. And, when you use the password starts to compress operation, the title bar compressed file name and parameters dialog box will blink twice.

If you compress the file name and parameters dialog box, enter it directly, you do not need to remove the password. This differs from other methods, such passwords only operate effectively in a single compressed, and will be automatically deleted after it.

When extracting encrypted file, you can start operating before without the prior password. If WinRAR encounter encrypted files, but not to enter a password before extracting it, it will prompt for the password, if you forget the password, you can use the rar password recovery to find back the password.

WinRAR supports ZIP 2.0 format using proprietary encryption algorithm. RAR archives with more powerful AES-128 encryption standard. If you need to encrypt important information, select RAR compressed file format would be more better. In order to do security, minimum password length to 8 characters. Do not use any language of the word as a password, preferably random combination of any of the characters and numbers, and passwords to pay attention to the case. Remember, if you lose your password, you will be unable to remove the encrypted files, even the author of WinRAR can not extract itself encrypted files. In this case, once again to note you, the rar password recovery is the best tool to access you to recover rar password. It is an all-in-one computer tool suite specially designed for Windows users to meet all emergency repair and daily maintenance needs for your computer. More surprises about the tool is that it can not only find password for rar files but also can crack password for excel ! Just for a note, I hope you can encrypt your rar password successfully.

For the people who don't often use RAR file, they may don't know what is rar password and how to set rar password . But before we learn how to set rar password, we should know what is RAR file. RAR is a proprietary file format for data compression and archiving package, developed by Eugene Roshal, so its full name is Roshal ARchive.

Eugene Roshal was originally written for DOS version of the encoding and decoding process, and later ported to many platforms, such as the famous Windows platforms WinRAR. Eugene Roshal conditional open the source code of the decoding process, but the encoding process remains private.

RAR file extension is. Rar, MIME type application / x-rar-compressed.

RAR and ZIP are both lossless data compression, but compared to ZIP, RAR files have the higher compression ratio, but in a slower speed than ZIP. Since RAR file header will occupy a certain space, there is little room in data compression, the compressed file may be larger than the original file. One of the main advantages of RAR is it can compress the target file into multiple files, and easily separated from this extract the source files compressed files.

In addition, RAR format also supports tightening, all files are compressed to the same data area to increase the compression ratio, the cost of extracting a single file to extract it in front of all files. The new RAR encryption algorithm is using AES, and the old RAR encryption algorithm is private. Both algorithms are hard to break, so if you lost the password you can only use some recovery tools to do it and I recommend best rar password recovery for you. RAR can also add redundancy repair information, repair information in the file is damaged but can be good enough to repair the compressed package.

Usually you can use WinRAR to open RAR treatment and this is the most popular way.

Generally RAR's compression ratio is higher than ZIP, but the compression / decompression speed is slower.

Sub-volume compression: compressed into multiple files.

Solid compression: the same as to compress a file to increase the compression ratio, the cost of access to any documents required to extract the package in the archive.

Recovery record: adding redundant data is used to repair damage in the archive itself, but the recovery record may be enough for a long time to recover the damaged archive.

Encryption: RAR 2.0 using AES, the encryption algorithm before the RAR private. Have not yet been directly compromised (at least not publicly), do not know the password can only brute force.

Note: The best rar password recovery is not only a rar password recovery but also can recover hard drive password for you once you lost your important data. In addition, Hard Drive Recovery can help you: 360°PC health check; Optimize & speed up PC; Clone partition/disk; Manage disk easily; Recover lost data; Find passwords & MS product keys; Backup & restore files/system; Protect privacy & data security etc.

In the format the partition, we often found that a quick format is always faster than the normal format. Why? What is the difference between quick format and normal format? Do they both harm the hard disk? If you are not a computer expert, you are curious about these questions. So today, I will introduce the difference between a quick format and general format.

If you install Windows 7 operating system in a new hard drive, and the first format is recommended to select the system's own standard formatting because the format of the hard drive of the Windows 7 system requirements is more strict and the first time using the system's standard formatting for hard disk should be useful. If you want to recover the formatted files from hard drive in Windows 7, you have to use Windows 7 password recovery software.

About the difference between the quick format and general format, you should know that a quick format is not the true meaning of the formatting, it just quickly delete all the partition. If no virus exists in your computer, you can try this way to save your time. However, if your computer has  virus, this solution does not work at all. So if you want to delete the files in your hard drive on your computer completely, you should take use of the normal format.

Quick format this disk as a "formatted" tags. Although theoretically all the information of the disk can be recovered with the best hard drive recovery software , Wondershare WinSuite 2012 for example, but only through these special software recovery. Intraday Trojans have all been cleared (100%), unless you intend to use special software to restore it. Common formatting will not be able to use special software recovery data, the only difference.

However, if your system tray, there are a trojan or virus, and they run, even if you format the other disk, the virus may also write your own re-formatted disk.

Quick format the partition on the data erase operation, time-consuming in a few seconds to tens of seconds ranging from.

Slow formatted the partition on the data erase operation, and then fill in any data to fill the partition, and then erase the data, to erase the original data destructive function. And in the format operation after the erase, while the hard disk for bad sectors check side of the partition. Consuming a few hours to ten hours ranging.

The usual optimization of computer systems maintenance only need fast formatting can be, if your hard disk data is confidential, and that is formatted with a slow.

By the way, if you want to recover deleted files from hard drive , you should try this Hard Drive Recovery software. It is a multi-purpose and versatile solution that will provide data recovery solutions from almost all types of data loss.

"Help! I've forgotten my computers password and I can't access to it. My computer runs Windows 7 operation system. Is there any way to recover or reset my Windows 7 password? " This is the common question I meet on Yahoo Answer every day. As a matter as fact, there are many methods to recover Windows 7 password, some of them are free and some require money. Today, I will discuss how to recover Windows 7 password once that happen.

The first method is you should try is that go to check out if you really forget the admin password or not. When we install Windows, it automatically creates an account "Administrator" and set its password to blank. Go to "Control Panel", then check the "User Account". In Safe Mode Windows will show this built-in Administrator account in Login screen. But note that you should make sure there is not another admin account exist.

The second way is using the Windows 7 password reset desk. With the Windows 7 password reset disk, you can follow the steps below to reset lost Windows 7 password .

Step 1. Insert Windows 7 password reset disk in computer.

Step 2. Access the Reset password option after inputting an incorrect password in Windows logon screen. When you click on the Reset password link, a Password Reset Wizard will come up to lead you to finish resetting Windows password. Of course, this solution is only effective when you have created a password reset disk before you lost password.

If the two methods can't help you to resolve the problem, you should find a recovery tool. I recommend you the best password recovery for Windows 7 . It is simple and safe that the average person will use it. It can soon reset the password in several minutes. Only theree steps can help you reset the lost Windows 7 password:

Step 1. Run Program
Install and launch the program, then choose the "Password&Key Finder" tab on the main interface, you will see the screenshot as shown below. You can recover all kinds of password, like email password, MSN, Outlook, Google Talk, Access password and much more by clicking the Password Finder.

Step 2. Select Windows Key Finder
To recover Windows 7 lost password, now please click in the left sidebar to select Windows Key Finder as you need. Then you will see the Windows 7 product ID and Product key as you want.

Step 3. Start Exporting
After that, you can click Export button to get the product key for the Microsoft Windows Operating system.

When you forget your Windows 7 password, you should try the three methods to find back the password of Windows 7. I think the last method is the most useful way to rest your lost Windows 7 password. The password recovery for Windows 7 is not only the professional Windows 7 password recovery but also hard drive recovery , which can fix all the problems of your hard drive. For more information, you are welcome to visit our site.

There are many kinds of hard drive problems but most of them can be divided into software failure and hardware failure. Look at this:
Software failure:
1. Desktop, laptop computer data error recovery, and the zoning mistakenly delete data format data recovery, reshipment system "my documents", the folder on the desktop, the documents, photos, after missing data recovery. Partition tip not formatting, partition attribute RAW change, partition capacity into 0 bytes, file takes up capacity, opens the folder for empty, indicating that the file or directory structure damage and unable to read, I/O error, error parameters can't read; Mobile hard hint to delay the failure, partition RAW format into recovery; Division into not assigned space or become undistributed space; Hard disk initialized, division into dynamic disk, folders into 000, data redundancy error, the hard drive was not formatting, partition can not open.
2. Lenovo desktop, laptop, lenovo TCL desktops, IBM, SONY, asus laptops, etc will bring the system restore CD, a key recovery into a division. All other division can be removed formatted data recovery. Laptop may loss all data after a key recovery, laptop lost division after a key recovery, and a key recovery system will become a division such as SONY, Lenovo, etc. And it is hard to retrieve deleted files from hard drive.
3. Use the GHOST installation system, cover D, E plate, and the other the system disk data recovery. GHOST installation system wrongly choose DISK FROM IMAGE caused all partitions hard drive for lost, become a partition, GHOST installation system, wrong choose "will be hard drive fast into four points" option. Hard disk is divided into four new division, the original hard disk data lost all partitions data recovery.
4. Use zoning magician PQ software error, accident causes such as power operation failure, the original partition damage, unable to read, indicating that the disk format data recovery, and not hint: the file or directory structure damage and unable to read error data recovery, double click dish to be when tip: parameter wrong data recovery.
5. Move hard disk abnormal inserted but don't perform "delete new hard drive" operation, the pull out the move hard disk, mobile hard disk partition can not open, appear the following error: "disk is not formatting, excuse me whether needs formatting", "file or directory structure damage and unable to read" mistakes ", and parameters such as error move hard drive data recovery.
6. Use the GHOST installation system, and the zoning magician PQ software, FDISK command, other division after software disk partition lost or deleted, in the disk management in which to display: undistributed space, space available, not assigned space, dynamic disk and so on hard disk data recovery; Multiple partitions merged into one division, and the zoning lost, partition shows "not assigned space"; PQ merge partitions failure, division lost; GHOST into a division; GHOST into four division; After the GHOST desktop file is missing, reshipment system "my documents" is empty; After the GHOST into a dish merged into one division;
7. Disk partition appear not format error, check that RAW format attributes for RAW or system. Available space for 0
Hardware failure:
1. hard disk, mobile hard disk was cast off the after thecrashed sound, slow boot crashed, read dish slow; Desktops, laptops can't normal powered up, tip can't find hard disk. Hard disk deny, mobile hard disk can't identify; Mobile hard not to read; Move hard disk can't identify;
2. Computer can recognize move hard disk, double click the computer to crash or operation is slow.
3. Digital partner can't boot, suggested that "can't find storage equipment".
3. Open the hard drive but it suggested that you forget the hard drive password. This can be removed with password recovery software.

Although there have higher versions of Windows operating systems than Windows XP, like Windows Vista, Windows 7 and the latest Windows 8, Windows XP still accounts for a large amount of market share. Windows XP includes many new features which are not found in previous versions of Microsoft. Many times you face the problems when you forget the Windows XP password and you are unable to log into Windows. So, here are few of the methods that you can try to recover your lost Windows XP password.

Method 1:

When you install Windows it automatically creates an account "Administrator" and sets its password blank. So if you have forgotten your user account password then try this:

Start system and when you see Windows login screen, press ctrl+alt+Del keys twice and it'll show login box. Now type Administrator in user name and leave password field blank. Then press Enter and you will be able to log in Windows. Now you can reset your account password from Control Panel - > User accounts.

Method 2:

Windows XP also provides another method to recover lost or forgotten password with the help of "Reset Disk". If you created a password Reset disk in past, you can use that disk to reset the password.

Method 3:

If the above listed methods do not work then try the following trick:

1. Boot using Windows XP Setup CD and follow the instructions.

2. When it will ask to repair your existing Windows installation, accept it and press "R" to run the repair.

3. Setup will start repairing your Windows and will start copying files.

4. After some times setup will restart your system and when it will restarts don't press any key when it shows "Press any key to continue..." else Setup will be start from the beginning.

5. Look carefully at the details and when it shows "installing devices", press + F10 keys.

6. Then a command prompt window will be open. Now type nusrmgr.cpl and press .

7. It'll open the same "User Accounts" window which you see in Control Panel.

8. Now you can remove or reset any account password without any difficulty.

There is yet another method of XP password recovery with the help of XP password recovery software's. This password recovery software provides facility to quickly scan all XP passwords. Now XP login password recovery is possible with the help of the above listed methods and the password recovery tools. The XP password recovery tools are easy to use and safe to install you can easily download it from internet.

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