Saturday, August 13, 2011

How to Repair corrupted files in windows manually


Are you getting system errors while running windows operating system or start up? Does your windows file display message reinstall or windows file errors? Does viruses has corrupted your system files? Does your important windows files got deleted? Most important your shortcuts and windows programs are not working properly? Does your registry got corrupted and displaying registry errors? I know its quite irritating when you got such error message in middle or start up. Most guys think that external software's and formatting system can only solve such problems. If you are one of them, i will prove that you all are wrong and we can repair our system as perfect new one without installing any new software or formatting windows system. We can repair our system in less than 5 minutes and most amazing thing is that i will explain you manual method of doing that. So friends, today i am going to explain you How to repair corrupted system files in windows manually. For repairing system, you just need to know windows inbuilt tools that almost 99% of guys doesn't know as windows never focused on that feature. 

I have also explained another method in my previous post "How to fix corrupt files in windows". So today i am explaining a new manual methods to fix windows errors and repairing system files.
Yesterday i was browsing my sytem32 folder in windows and checking some executable. I was very curious what these executable do and in fulfillment of my curiousness i found something really awesome that will make you all of them crazy. I founder something called "webfldrs" and you all will be amazed to see what it serves. Its absolutely serves for different purpose as its name suggests. This windows executable repairs everything in windows system. Its has several features listed below:

1. Repairs all detected reinstall problems.
2. Verify and repair registry entries for user windows programs.
3. Validates the shortcuts.
4. Reinstall if the file is missing, or an older version exists.
5. Reinstall if file has different version.
6. Reinstall the dll or exe if file has different or invalid checksum.
7. Verify local registry entries are present and repair if not.


Guys can you make a guess which of the above features i like most?? I love 5 and 6 feature the most? Why?? Answer is quite tricky but easy to guess. Reinstall if file has different version, or different check sum or invalid check sum. What the hell is this checksum.. Aha..... Checksum is the technique or method to verify the integrity of file. When Microsoft has designed exe or dll or simply a file they have calculated a checksum parameter. Now when some virus infects that file or attach itself to it, what happens is that, its value of checksum changes(as checksum calculation is based on bits, as extra code is added to it so its size surely gonna increase and number of bits involved will also change). So you now come to know why i like 5 and 6 points. If still not, guys they fixes the windows system files that viruses has infected or corrupted.
 That was the background as i want to teach you hacking not just wanna make you script kiddie. So lets learn how to repair corrupted system files in windows manually.


Steps to repair or fix windows manually:
1. Go to drive in which you have installed operating system. In my case its C drive. 
2. There you will see a Windows folder. Go to Windows folder and then enter into system32 folder. Now there go down and search for webFldrs file.
Here is complete path:
C:\WINDOWS\system32\webfldrs.msi


3. Open WebFldrs file by double click it, you will see something like below snapshot:
windows tips and tricks to fix corrupted files
Initial Window for repairing Windows Files


4. Now a window will pop up. Select all the options as shown below and click on OK.


fix system file errors, tips to fix system files
Select repair type options

5. Now after you click Ok, you are back to previous window. There click on reinstall as shown below:

hacking tips and tricks to fix corrupted registry and system files
Click on reinstall to repair windows file system
6. When you click on that you will see below windows of repairing your files. This may take 20sec to 5 minutes depending upon your systems condition.
hacking tutorial to fix corrupted files
Repairing files window
repair corrupted files, registry errors manually
Repair has been completed.

7. That's all my friends. Its done you have fixed your windows system files.



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13 comments:

  1. does not have webfldr file in system32... m using windows 7... please help

    ReplyDelete
  2. @ anonymous 3
    I think its not there in windows 7, I will tell you alternative in windows 7 very soon... keep visiting.

    ReplyDelete
  3. for windows vista -> windows 7 i usually use the command sfc /scannow in cmd running as an administrator it dose basicly the same thing checks the system files and replaces them if they have been modified eg. missing files or invlaid checksum values as well as startup problems

    When setting up dual booting into xp/win7 when using a cracked version of 7 often after installing xp it will mess up the boot loader or other similar files as windows sucks at this sort of thing.

    So if im not using a custom unix based boot loader i often use the above command to repair booting of cracked dual boot systems simply because the crack modifies the checks windows perfroms for a valid licence key and after installing another copy of windows it will rewrite the boot.ini and other files that need to be repaired then recracked.

    ReplyDelete
  4. o i was wondering why i had never used or even seen this application in several years of computer repairs and now its a little clearer please note this is quoted information and micro soft did document it briefly.

    "Web Folders, or WebDAV, is a file transfer protocol that supports secure file transfer over intranets and the Internet. With Web Folders, you can upload, download, and manage files on a remote computer across an intranet and the Internet. Web Folders is similar to File Transfer Protocol (FTP); however, Web Folders provides a more secure environment for transferring files over the Web."

    After reading this i would assume the application is accessing the system files from a local store and running a comparison of checksum values, versions and related registry keys from either a backup registry key file or some other similar method then replacing the files/registry keys from a remote/local location.

    And being the hacker/cracker that i am this is very interesting makes me wish i knew about it several years ago when it was implemented... so that i could exploit it just think if you wrote a virus that modified the server that it connects to or folder etc.

    (would have to run some code breaks on the application to be a little clearer but I'll look into that another day)

    although it shouldn't be horribly difficult to include this type of logic in programming your virus thus allowing a simple virus or worm to become a major security hole for windows just think if you sent the application false registry keys or virus versions of system files as and your virus/modified version of this file was set to say /run net start webfldrs assuming this is a service if not there are other ways to set this to run automatically.

    ReplyDelete
  5. @Lesso

    Yes brother you are correct in windows 7 or windows vista its done by command sfc /scannow in cmd.

    And you are right that both of these services like FTP protocol and you can also exploit this. I think i have already uploaded its exploit around 3 years back on milw0rm. You can check it there... :P...so you have to search it there and find it.

    ReplyDelete
  6. @ Lesso
    If you want that i should upload that exploit here too, i can do so but Google will penalize my website for doing that, that's why i only publish the positive things about these services.

    ReplyDelete
  7. Absolute Genius!!

    ReplyDelete
  8. last year when i was checking system32 folder then i saw all executable files were directly execute by types its name in start---->run ----name---press enter

    ReplyDelete
  9. It's only for webdav folder.

    Not for other system file.

    For repair windows run sfc /scan in command prompt.

    ReplyDelete
  10. When i run sfc/scannow command in cmd. it always display " you must be an administrator running a console session in order to use the sfc utility. m using window 7 home edition

    ReplyDelete

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