I have a computer with only one harddrive but I have a spare harddrive that I can temporarily use.  I can't format my computers harddrive because I still need to use the operating system every day and to setup, install and update all my works programs it would take over 24 hours so to prevent downtime I want to install the operating system and programs to a second harddrive and then once it's setup correctly I need to wipe the first harddrive and copy the entire os, files...etc back over to the first, now clean drive.  Is there a way to do this or is it better to do it with partitions or something?  Any ideas?
Can anyone recommend a cheap/free utility that can do this without very much effort?  My preference is that it would be really easy.    Boot into Windows Pick drive to move Pick target drive It copies everything over, and reboots to the correct partition.
Flagging accepted "answers" Home button broken and Notification Center stuck my home button on my ipod touch 5th Gen has been broken for  while so I have been using assistive touch. Earlier on my notification centre got stuck half way down the lock screen, making my ipod completely unusable.   I tried turning it off but the notification centre is blocking the slider and obviously I can't restart it since my home button is broken. Has anyone got any solutions? It's an absolute nightmare! How is ISO implemented in digital cameras? If I change the ISO settings on my camera, obviously the gain of the system is increased, amplifying the signal from the sensor. What's not clear to me is where the amplification takes place. I see several possibilities:   In the sensor, by increasing voltage or some other mechanism Via an analog amplifier outside of the sensor Digitally, after the signal has been digitized, but before storing data in the RAW file As a parameter applied solely in creating an image from RAW   If #4 is true, then you could take a 4-stop overexposed RAW picture at ISO 1600, and then in post processing produce a JPEG at ISO 100 that would be the same as if the original photo had been shot at ISO 100.  If #1 or #2 is true, then a RAW file shot at ISO 1600 would actually contain more information about shadows, and an ISO 100 RAW would contain more information about highlights. Ask to install program after "The program 'x' is currently not installed" If you try to execute a program that is not installed you will get a message  The program 'x' is currently not installed. You can install it by typing:  sudo apt-get install x   and instead of offering you to install the program for you, you have to type the actual command. How can this behavior be changed? Can a decision in a node of a decision tree be based on comparison between 2 columns of the dataset? Assume the features in the dataframe are columns - A,B,C and my target is Y  Can my decision tree have a decision node which looks for say, if A&gt;B then true else false? Why are my converted CMYK blacks coming out grey? I'm having a rather annoying problem! I have RGB images made in Photoshop that I need to convert to CMYK.  When I save the file my black background is converted to a light grey! I tried deleting my background and adding a pure black background in my PSD file but even that comes out grey! There is no way to save black? The colors all look fine in Photoshop, it's just when I save them as TIFF/JPEG.  How can I prevent this? Expansion of $(1+\sqrt{2})^n$ I was asked to show that $\forall n\in \mathbb N$ there exist a $p\in \mathbb N^\ast$ such that $$(1+\sqrt{2})^n = \sqrt{p} + \sqrt{p-1}$$   I used induction but it wasn't fruitful, so I tried to use the binomial expansion of $(1+\sqrt{2})^n$ but it seems I lack some insight to go further.   Any hint is welcomed. What are the good ways to migrate a RAID array to bigger disks? In linear regression, each predicted value is assumed to have been picked from a normal distribution of possible values. See below.  But why is each predicted value assumed to have come from a normal distribution? How does linear regression use this assumption? What if possible values are not normally distributed? This code always works, even in different browsers:  function fooCheck() {   alert(internalFoo()); // We are using internalFoo() here...    return internalFoo(); // And here, even though it has not been defined...    function internalFoo() { return true; } //...until here! }  fooCheck();   I could not find a single reference to why it should work, though. I first saw this in John Resig's presentation note, but it was only mentioned. There's no explanation there or anywhere for that matter.  Could someone please enlighten me? Why do I keep getting told I posted less than 15 characters when I posted more than 15? I tried to post the following comment and it claims it was less than 15 when it was more.  Based on Tim's comment and testing I believe it would not let me post because with @Shadow removed it is less than 15. However, the characters left message indicates I have passed the 15 character minimum thus it is wrong.  This is the bug I'm reporting:  The characters remaining message and the characters left message do not take into account striping out @name prefixes. Map display not filling window in QGIS on Mac? An example where the output of the k-medoid algorithm is different than the output of the k-means algorithm How to find a function in $ L_{2}(0,\infty)$ but not $L_{q}(0,\infty)$, $q\neq 2 $ Receiving Stack Overflow's Chat Notification This is regarding the feature where we can chat regarding a question on SO. There is an automated process for creating the room from comments. It's a very useful feature in case the OP is not able to understand an answer and needs more clarification.  What I don't see is a notification system for chats where there has been an extended period of time between communication.   Let's say someone replied to my chat after a few days, in that case I do not receive any notification.   This happened to me only a few hours ago, where in I had replied to one question but the OP was not available at that point and he replied to me after some days. As I didn't check that chat I had no way of noticing if someone replied to my message and the 48h window after my last activity in that chat, during which I would have received the @ convention ping notification, had already expired.  We receive notification on posts, upvotes that we receive, so why not the chat rooms?   Should there be a notification center like the one for posts (or may be include this in the same center as posts)? Why does a helium filled balloon move forward in a car when the car is accelerating? After having read various articles on this site about WWW or Non-WWW website setup, ,  and , and after having setup a correct redirection rule in .Htaccess to at least eliminate duplicate contents (currently the non-www solution (e.g. http://example.com) I have a feeling that my site rank less since I changed this.   My confusion was strengthened by these two opponents:     &amp;     Could the change of www.example.com >> http://example.com have a factual impact on ranking?  say either is better or worse. Are they holding information back?  I am confused fellow folks...  As much as I would like to separate facts from fiction, I am aware that not all the good valid information is written. Not on google webmaster site and perhaps not elsewhere. If so it seems out of date!  Does or does not a WWW domain impact SEO/rank better than its NON-WWW version? (Given that you have setup a proper redirect to avoid duplicates and go with one) Correct position of "only" Which is grammatically correct?  I can only do so much in this time.  or  I can do only so much in this time. Display the original question beneath the answer edit form Often when I edit one of my answers, it's because I want to better address the original question. The only problem is that I can't see the original question while I'm editing my answer!  I'd love to see the original question text beneath the "answer edit" form. This way I could scroll down slightly to read it if I wanted to, or just ignore it if not.  Current workaround is to click the 'return to answer' link and hope that you remember to launch it in a new tab/window, then tab back and forth.    Imported from this uservoice item: Custom unique constraint, only enforced if one column has a specific value