Had win 7, made separate Partition for 8.1 installed, now win 7 lost

I should of known not to do this, but I created a separate partition and installed win 8.1. The main partition was running windows 7 with true crypt installed.  When I boot up now, I get the option to choose between OS's, goes into win8.1 fine, but on win 7 partition, file are trying to be repaired. Within 8.1 I  do not see the other win 7 partition. I used a boot magic disk and it shows the win 7 doesn't have a file structure. How Can I repair this?
TRSTeamAsked:
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TRSTeamAuthor Commented:
Also when I boot now, I do not receive the TrueCrypt login password prompt
TRSTeamAuthor Commented:
correction, under windows 8.1, the windows 7 partition does show up, just unformatted. I just need a few files off windows 7 partition, possible?
David Johnson, CD, MVPOwnerCommented:
running windows 7 with true crypt installed If you didn't create the recovery disk then you're done, you might as well just format that partition

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TRSTeamAuthor Commented:
Any way to do a data recovery once I format that drive? FREE.. I mean
David Johnson, CD, MVPOwnerCommented:
The data is GONE as you can't decrypt it.. no one can.. one can recover the encrypted disk but you still have to decrypt it.. since you no longer have the keys then you're done.. you learned a very powerful lesson. you also should have backups..  I learned this with EFS encryption a long time ago.. I didn't backup the keys, reinstalled the OS and no longer could access those files.
web_trackerComputer Service TechnicianCommented:
The purpose of encrypting the files is to prevent anyone from recovering the files, even if they used data recovery software. If data was able to be recovered some how it would defeat the purpose of encrypting the partition. I therefore tend to agree with David that the data is gone unless you have the encryption keys.
McKnifeCommented:
Install truecrypt on 8.1, mount the volume, bingo.
noxchoGlobal Support CoordinatorCommented:
Strange but first idea which came to my mind was also installing Truecrypt on 8.1 and trying to decrypt the partition from it. Chances are 50/50 but it really can work if the partition has not been corrupt during installation of Windows 8.1. Which seems to me impossible as long as you installed it to space next to Windows 7.
McKnifeCommented:
The bootloader of TC has been overwritten, that's all. The data is perfectly unharmed. It does not need to be decrypted, just mount it.
noxchoGlobal Support CoordinatorCommented:
Yes, but mounting is decrypting, although in memory.
David Johnson, CD, MVPOwnerCommented:
@noxcho @McKnife Even if you know the password you can't mount it since you don't have the secret sauce..(remember the mouse moves that you did when you created the encryption) The only way is to find your truecrypt recovery cd and use it since it with your password is the ONLY way to get at this data. you can then decrypt the drive. If you want you can add the truecrypt boot loader to boot into windows 7 enter the password otherwise hit ESC and boot windows 8 using the windows 8 boot
McKnifeCommented:
No David, that's wrong. I have tried all this myself some time ago as part of an encryption study including truecrypt. We also did just this very scenario as desaster recovery.
David Johnson, CD, MVPOwnerCommented:
Not in my trial of reproducing the problem.. how did you mount the volume? when you created the encrypted volume did you select single or multiboot?
McKnifeCommented:
Second menu from the left, mount without preboot authentication. Created as single boot. Win7 x64 installed and encrypted, then installed 8, no booting of 7 possible afterwards, but still mountable from 8.
McKnifeCommented:
TRSTeam, are you still on it?
noxchoGlobal Support CoordinatorCommented:
I guess he selected the simple way by reformatting it.
McKnifeCommented:
Super... David, next time, you should not be so sure... :|
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