Fix corrupt found.000 file? I have an external USB drive, formatted as NTFS. It has started to fail, and has a number of bad sectors. I have been able to recover most of the data, but one directory was giving errors so I ran CHKDSK /f on the disk.  CHKDSK did not complete, failing because it ran out of space (there was at the time around 40gb free out of 500gb). After it ran, the problematic directory became empty, and CHKDSK left a found.000 file in the root. I think normally this would be a directory full of .chk files, but in this case the found.000 file itself is corrupt - in info screen, it shows a "size" of "17356456 bytes (,.))/0(,0 bytes)" but "size on disk" of 4.00kb. So even the actual size can't be figured out by the OS.  I have now deleted some additional files to give the disk more space, but CHKDSK will not complete (it hangs). I'm wondering if there is some way I can un-corrupt this found.000 file, as I suspect it will contain the missing files from the directory in question.  Any ideas?
What can I do with .chk files in FOUND.000 folders? Just discovered I have gotten a FOUND.000 folder on my usb drive. I guess from running chkdsk once. It has three files in it:   FILE0000.CHK FILE0001.CHK FILE0002.CHK   What exactly can I do with these files? What are my options? Are they lost files? Are they garbage? Can I use them for anything at all? Or will I just have to delete them?
Using induction to prove that $\sum_{r=1}^n r\cdot r! =(n+1)! -1$ Use induction to prove that    $\displaystyle\sum_{r=1}^n r\cdot r! =(n+1)! -1$   I first showed that the formula holds true for $n=1$.  Then I put n as $k$ and got an expression for the sum in terms of $k$.  I then found the sum till the $(k+1)$th term by adding the $(k+1)$th term to both sides of the equation and compared it to the sum expression I get by plugging $k+1$ into the sum expression given in the question - they don't match. Stack Exchange sites need a universal clock that is visible! Since the Stack Exchange sites run on one clock, and a clock that is not common to most of us (such as those of us in the US), can we display a clock with the site time (UTC) displayed somewhere on every page, such as at the bottom with the other text?  That way we are more aware of when the days turn over, and ecetera...  close votes, delete votes, flags, and normal votes would also benefit from this as well (thanks @Grace Note!)...    What do you guys think? yea or nay? thoughts? Should reputation points expire? While looking at the SO question  It occurred to me that this was an extremely simple question with an extremely simple answer.  And yet, it has garnered the OP thousands in upvote points, simply because he was the first one to ask this question in the early days of SO.  There are many examples of these simple questions and I believe they don't accurately model a user's participation in the SO community.  People shouldn't be getting thousands or even tens of thousands of points from a question just because they were lucky enough to get it in the system a while ago.  Another related issue is that the non-expiring point system rewards users for seniority.  Simply put, the longer you're around SO, the higher your score will be.  While there's some merit to this, it seems to have a disproportionate effect.  So what can we do to limit these effects?  I'm just brainstorming but here are a couple ideas:   Automatically close voting on questions after a certain time period.  Good questions will still be rewarded, but they won't give disproportionately large rewards simply because they are really old questions. Expire users' points after a certain time period.  If you expire users' points after, say 3 months, then this will force them to stay active and their points will be more a reflection of "How much have you participated lately"?  It forces old users to stay active rather than resting on their laurels, and allows junior members a chance to catch up to senior members of the community by putting in a lot of effort.  Currently, there is no chance at all for junior members to ever catch up with senior members and their only 'sin' is that they didn't register 5 years ago. Is Using Digital Signatures to prove identity a zero knowledge proof? Suppose Alice publishes a book with a public key in it, and later wants to prove that she wrote the book. She could sign challenge messages with her private key, and others could verify those signed messages. Alice is proving she knows a private key without revealing anything about it.  Is this an example of an interactive zero knowledge proof?   Or does this example somehow not apply to zero knowledge proofs? Huge close votes review queue on Stack Overflow How to use AP Style commas after dates I was wondering how you are supposed to use commas after full dates in AP style. I've been told to always put a comma after the year, like in the sentence:  On April 4th, 2012, I found a cat.  However, I thought the following might be an exception:  April 4th, 2012 brought the death of my cat.  Notice how there's no comma after &quot;2012.&quot;  My teacher disagreed and told me that the AP style dictates that we always put commas after dates like that. The way I reasoned through it is by replacing the dates with the word &quot;Monday&quot;  On Monday, I found a cat. Monday brought the death of my cat.  And you wouldn't write  Monday, brought the death of my cat.  TL;DR Which one is correct?  April 4th, 2012 brought the death of my cat.  or  April 4th, 2012, brought the death of my cat. Why is energy in a wave proportional to amplitude squared? Can "who" as a relative pronoun sometimes be omitted? Conditionally Rendering Visualforce element based on user profile I have a controller extension and want to use the Tabbed view to get rid of the Chatter caused endless scrolling.      public class UserProfileGetter {     public UserProfileGetter(ApexPages.StandardController controller) {      String userProfileName = [select u.Profile.Name, id, UserType from User u where u.id = :Userinfo.getUserId()].Profile.Name;      system.debug('Profile===================='+userProfileName);      }    }   When I run the debug it shows my Profile as 'System Administrator' correctly.  My VF page code:  &lt;apex:page standardController="Account" extensions="UserProfileGetter" showHeader="true" tabStyle="account" &gt;   &lt;apex:tab label="Opportunities" name="Opportunities" id="tabOpp" rendered="{userProfileName!='Chatter Content'}"&gt;          &lt;apex:relatedList subject="{!account}" list="opportunities" /&gt;       &lt;/apex:tab&gt;        &lt;/apex:tabPanel&gt; &lt;/apex:page&gt;   So the logic for render I want is - if the user profile name isn't Chatter Content, render. But if I have this logic in the page it won't render for anyone, including me. Ideas? Thanks  Amending - to query other variable on the user, a checkbox called "Admin Team" to display the tab for Account Teams related list, I query for both like this:  public class UserProfileGetter {     public String userProfileName {         get {             return [                     select Profile.Name                     from User                     where Id = :Userinfo.getUserId()                     ].Profile.Name;         }     }     public boolean userAdminTeam {         get {             return [                     select Admin_Team__c                     from User                     where Id = :Userinfo.getUserId()                     ].Admin_Team__c;         }     }      public UserProfileGetter(ApexPages.StandardController unused) {     }   }   And then I use like this:   &lt;apex:tab label="Account Team" name="Account Team" id="Act" rendered="{!userAdminTeam}"&gt;   Thanks all. How can I do traffic shaping in Linux by IP? We have a transparent proxy setup. I tried looking for traffic shaping in Linux, and all I could find online was to limit traffic by interface (eth0/eth1...).  I need to limit the bandwidth (never exceeding a specific limit) by IP address or IP ranges and I can't find a way to do that.  Is there any way to do that? What happens if you use the 32-bit int 0x80 Linux ABI in 64-bit code? I would like to achieve this effect using my Nikon P510:      Are there any suggestions or tips that would help me do that? I've seen many people who say:     This is a HTML page.   Yet I've also seen many people who say:     This is an HTML page.   Are both usages equally correct?  Or, which is the grammatically correct one?       Possible Duplicates: Is exon order always preserved in splicing? Are there any cases in which the splicing machinery constructs an mRNA in which the exons are not in the 5' -> 3' genomic order? I'm interested any such cases, whether they involve constitutive or alternative splicing. Possible Duplicate:             Each post has an indicator which summarises who the post is shared.    What is the difference between these two terms? Should I write summarises or summarizes? Is there a general formula for finding all subgroups of dihedral groups? Why are .NET timers limited to 15 ms resolution? What's the difference about /t̬/ and /d/? Chrome asks for password to unlock keyring on startup In Google Chrome, when I go to a login page, a window pops up asking to "Enter password for keyring 'default' to unlock". In most cases, whether I click Cancel or enter my password, the login form gets auto filled anyway.  How do I get rid of the popup? I want it to auto login each time, not ask for my system password. The dialog box never appears for any other apps. A word that says a person is both female and your friend It's often confusing for me to talk about my friends, especially my female friends. This is because in Dutch there are words for both male ("vriend") and female ("vriendin") friends. In English however, there's as far as I know only the word friend, which can mean both a male or a female friend.  For this reason I was wondering if there is a word to say a person is both female and a friend.