Undo is a command in many computer programs. It erases the last change done to the document reverting it to an older state. In some more advanced programs such as graphic processing, undo will negate the last command done to the file being edited.

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Recover a deleted volume in Windows

I accidentally deleted a volume in Windows Disk Management. Is there an easy way to undo that action? Or do I have to use a file recovery tool?
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Cursor movement history in Vim

How can I restore cursor position in Vim as it was before scrolling, selecting or PgUp/PgDn? I'm tired of searching where I was before I scrolled up to look something at the top. Are there something ...
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3answers
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How to rollback the edit version in VIM?

I realized I had deleted something for mistake when I typed :wq,then how can I rollback to the pre-version?Thank you!
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undo moving of a folder in Windows [duplicate]

There are times when instead of scrolling vertically in file explorer I accidentally move a folder to within another folder. Great! It happens so quick I don't know which folder was moved and this ...
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Apple Mail: Can't undo a delete?

Sometimes I can't, and sometimes I can. I want to be able to ⌘-Z after I accidentially delete a message. Or multiple messages. I want the Undo feature!
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I am only able to undo once in Excel

I can only undo once in Excel and I have taken the steps to change the number in the Edit Registry and that did not fix the problem. Help! Very Annoying!!!
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svn revert changes in repository but not locally

What I am looking for here is how to manipulate Svn to effectively rollback my previous commit to the repository without affecting the changes I have made locally. Let's say I do this: $ svn ci abc....
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2answers
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Microsoft Excel Undo Only Works Twice

I am using Microsoft Excel 2003. A major irritant is that I am unable to use "undo" more than twice. Can you not use Undo more than 2 or 3 times or am I missing something? Are there any solutions to ...
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5answers
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Getting spurious undo (Ctrl+Z) sent randomly on a Dell laptop

For the past couple of weeks, my laptop has had a strange problem where it looks like Ctrl+Z is pressed, so I usually lose bits of text I've just typed. If I redo by pressing Ctrl+Shift+Z, the text ...
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How can I undo or rollback an “apt-get upgrade” command on Ubuntu?

Is there a way in Ubuntu to rollback or undo the last upgrade after doing an apt-get upgrade if you don't like the results?
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Virtual disk with “undo support” for testing?

To speed up my testing, I need to prepare a disk with some files, do some operations on disk (modify files, create new files...), and return back to clean state (before doing operations) quickly. I ...
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undo Linux's rm? [duplicate]

Possible Duplicate: UNDO LINUX Trash Command Hi, Is there any simple way to undo an rm command? The question is purely theoretical; I have NEVER deleted the log of a benchmark queue who ...
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Undo the Linux trash command

Can we undo operations done in a terminal, for example, file deletion through rm? Solutions obtained: Aliasing Undelete utilities Backup utilities LibTrash Versioning (FUSE)
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Photoshop enable Multiple undo?

I'm used to applications allowing you to perform multiple undos at once with Ctrl-Z. I've found that at least the default setting in photoshop is only a single undo. How do i change this (im a ...
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Once you've enabled tethering on your iPhone, how do you undo this?

Sort of in response to this question, how do I remove the mobile config that gets installed on the iPhone? Are there any side-effects as a result of removing that configuration such as the data ...