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Old 04. Nov 2014, 08:41 AM   #21 (permalink)
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Originally Posted by Melita-s View Post
2. In case of boot failure, can any one of these disks be used to boot up any computer regardless of the operating system?
Since they are all live CDs, and work independently of the hard drive, yes, any of these discs can be used to boot the computer.

But, if you are looking to restore your computer because of some error, then you will have to boot the computer with the proper disc. As Joe says, it won't make sense to boot a computer having Windows 7 with a Windows XP disc, or vice versa.

It also depends on what particular issue you are having on your computer. If you are having some issue which will require the use of a tool which is on UBCD, then you will have to boot the computer with that CD, and you will also have to know how to solve that issue using that particular tool on the CD.

So, having the discs is not enough. You need to know how to use these.

One cannot study and know everything too, as there can be loads of issues that can occur. So, just keep these discs available, and then when you encounter an issue, you can read up on that issue, and find out how to solve it, and if it requires using one of these discs, then you can use them.

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4. Is there a method to check that the image has burned properly to the disk?
Well, how I check is to just put the disc in the drive, and let it load. If I see the disc contents fine in there, then the image has been burned properly .

Note that I keep autoplay turned off on my computer. It suits me from a security point of view, so that infected discs or pen drives do not open up automatically.

Another way is to boot the computer with it .

Well, that's my method of checking. If anyone has a better way, let us know here.

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5. What happens if you use one of these disks to boot up a computer in good working order?
As these discs operate independently of the hard drive, nothing will happen which will cause changes on the hard drive, and on the current operating system on the hard drive.

When you boot the computer from any of these discs, the operating system on the disc will load. It's like booting another operating system, but from the disc itself. So, you can play around like you would normally, but no changes will be made, and you won't be able to save stuff.

However, it's also necessary to take precautions, because these discs can "mount" the hard drives, and therefore, you can save stuff on the drive, or cause changes to it. So, make sure of what operation you are performing... do not just click, or start running tools... specially with discs like UBCD, which are made to recover your system, and therefore, the tools on that CD can cause changes to your computer.

Also, Linux live CDs have the option to install the operating system on the hard drive, and that can cause your existing OS to disappear. Although, there will be safety for this, as Linux OS do recognize Windows system, and offer the option to install it alongside... but still, you have to be careful of such options.

Still, it would be a good idea to boot your computer with these live discs and get an idea of how it all works. Unless you do something yourself, the discs won't cause changes to your computer, so don't worry too much about that.

If you do worry, then you cause your XP computer as a test one (since I guess, your Windows 7 might be the more important one having your important data), and boot it with these discs. So, even if you do something wrong, there won't be risk of losing any data.
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Old 04. Nov 2014, 09:31 PM   #22 (permalink)
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Melita, if you are still tuned in have a look at this thread started by Anupam. It's a good real-life case that can help you understand how bootable rescue disks are used.
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Old 05. Nov 2014, 04:42 PM   #23 (permalink)
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Thank you Anupam for the above lengthy explanation. It helps me to understand all the intricacies involved with boot disks. I followed the link joe had posted and read about your travails with a Win XP. One learns so much in this forum.

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Melita, if you are still tuned in have a look at this thread started by Anupam. It's a good real-life case that can help you understand how bootable rescue disks are used.
Thank you Joe for this link to Anupam's thread. It is so interesting that I spent half an hour on it!

Best regards,
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Old 05. Nov 2014, 04:57 PM   #24 (permalink)
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I do need clarification of this. I mentioned this in my post here of 01.Nov 2014 03:36 PM regarding the creation of Windows XP boot CD. I am posting the question here again:

For Windows XP, in Dean Adams's pakage (v.laurie's link),'Readme.htm' file gives a link to Microsoft to down load the necessary files. Both the Readme file and the Microsoft link says that this is for Windows XP with Service Pack 2. My XP has SP 3. Please see attachments.

* Would this make any difference for the purpose of this bootable disc? i.e. to boot my computer with Windows XP - Service Pack 3, in case of boot failure?

With what I have understood so far about Boot Disks, I say that this should not make a difference. Nevertheless I would like someone here to confirm this!

Thank you,
Attached Images
File Type: jpg read me.jpg (15.8 KB, 4 views)
File Type: jpg MS Windows XP.jpg (14.1 KB, 2 views)
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Old 05. Nov 2014, 06:15 PM   #25 (permalink)
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Welcome Melita, I am glad my post could be useful.

Do note that I was able to solve the issue with Hiren's Boot CD, but it could have been solved by other discs, or other methods too.

For example, I made change in msconfig by running it, which modified the boot.ini file. But, boot.ini could be modified by bootcfg command from the command line, with proper arguments, which would reset the boot file. That could have been done from another boot disc, which provides ability for command line. Or, even from a Windows XP CD, containing recovery console, or from a separate recovery console CD.

However, I don't know if that would have worked... because the startup entry would still be there in the startup list, and I don't know whether it would have affected the booting or not. Probably not... since I had deleted the file physically.

Well, I followed my way of thinking. Someone more knowledgeable than me might have done it differently.

The question you asked in your latest post, I too had the same question in mind, and that's why I had not made the recovery console CD, because it said XP SP2, but I had already installed SP3 on the computer.

I will be interested in the answer too. Probably Vic will know.
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Old 06. Nov 2014, 05:45 PM   #26 (permalink)
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Many thanks Anupam for this explanation.

Quote:
Originally Posted by Anupam View Post
The question you asked in your latest post, I too had the same question in mind, and that's why I had not made the recovery console CD, because it said XP SP2, but I had already installed SP3 on the computer.

I will be interested in the answer too. Probably Vic will know.
Regarding this, I sent you a private message.

Best regards,
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Old 18. Nov 2014, 07:43 PM   #27 (permalink)
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I scanned my computer with ESET on line scanner. It found unsafe matter in the UBCD532.iso file. Please see attached images and copy of scan results. 3 files were quarantined and 2 deleted.

Regards,
Attached Images
File Type: jpg ESET QUR. 9.11.14.jpg (10.4 KB, 4 views)
Attached Files
File Type: txt ESET 9.11.14.txt (291 Bytes, 4 views)
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Old 18. Nov 2014, 07:49 PM   #28 (permalink)
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They are probably false +ves, but to be on the safe side I would recommend using VirusTotal on any files you are unsure about.
https://www.virustotal.com/
HTH
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Old 18. Nov 2014, 08:03 PM   #29 (permalink)
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Thank you for the link. Unfortunately I deleted the quarantined files as well. So there is no way to check them now. This will be useful to me next time.

Can the name of the harmful Application 'PSWTool.KonBoot' appear even in a false positive? (as you can see in the report)

Thank you,
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Old 18. Nov 2014, 08:15 PM   #30 (permalink)
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Kon-boot is a Windows password reset tool, which is why it is detected as potentially unsafe application. It is a false positive.
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