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[FanXieren]

All of my rar files are stored on computer. One of them became invalid after this message - Invalid or corrupt authenticity information. In it I store document, images and other info. I want to get my data back, any help...

[Rkiver]

What OS? What program? 

 

This is VITAL information for a quick fix. For a long term fix, get something like a data recovery tool of some sort such as recuva if it's windows based, or something like Trinity Rescue disk or some such.

[FanXieren]

I'm on Windows 8 x64, my program is WinRAR 5.50. Thanks for these tools, I'll try

[digip]

Download 7zip. It's free and can open RAR files. If it shows as corrupt, you can try repairing, but don't expect it to work. Best is to have backups to restore from, but we all know that no one really backs their stuff up at home.

[0phoi5]

On ‎18‎/‎12‎/‎2017 at 3:42 PM, digip said:

Best is to have backups to restore from

+1 for 7zip.

Also, this. Always keep a back up on your PC/external hard drive/etc, and then have a few large USB sticks or another external drive and back them up again.

You never know when the backup will become corrupt.

As the army used to say; one is none and two is one.

[LucasCole]

On 17.12.2017 at 4:43 PM, FanXieren said:

All of my rar files are stored on computer. One of them became invalid after this message - Invalid or corrupt authenticity information. In it I store document, images and other info. I want to get my data back, any help...

If I have no idea what to do, then I usually apply powerful solution as download winrar repair

 

You may like this one article - http://www.win-rar.com/faq.html?&L=0

 

Full guide here: http://www.makeuseof.com/answers/can-repair-corrupt-rar-file/