" This installation package could not be opened. Contact the application vendor to verify that this is a valid Windows installer package." How to fix?
870694
Easy...you need to first load the Demo....at the end of the Demo it will unlock the other episodes. the DEMO confirms your purchase after it ends
1324595
sorry, i don't have window 8. As far as fix it utlities goes i'll never buy it again. unable to install
1754236
I've not experienced that actual problem, but try searching to see whether you've already downloaded the programme at an earlier time. It could also be the programme is already installed as part of the system. I hope you find what's causing the problem.
1602868
of course not, there is no cd to install windows 8.1, it is saying that is compatible with windows 8.1.
913168
I don't know what operating system you're using, however, mine worked fine and was able to install the driver. Here's a link to help with your problem:http://www.wintips.org/how-to-fix-windows-cannot-verify-the-digital-signature-for-this-file-error-in-windows-8-7-vista/Hope this helps.
1767823
I really had no issues with installation or using it......... sorry I can't help you.
1526711
First Question: There is a way to do a clean install with the upgrade version on an empty formatted hard drive. At windowssecret.com there are complete instructions. Second Question: You actually need to buy the 64 bit version
672472
I had the same problem. Sorry, no, I cannot help. I'm considering reinstallation of the software.
1680955
Stop trying to install it. It wrecked my computer, and I had to reinstall the OS.
572271
Hooo!! To bad..Double check to make sure you downloaded the right driver according to the version on Windows you have 32 or 64 bits.. Then try this steps, it might be a compatibility issue; >Rightclick on the driver exe before execute>click on properties>click on the tab compatibility and select for example Windows Vista SP1! (if doesn't work with vista try another OS compatibility)>OKAfter that execute the exe for install the drivers.With right click, run as Administrator.Hope that work!
1929638
No...the box says MS windows. Maybe there is a patch or update to make them compatible. However I don't know of one.
839135
Nevermind, I got it! The manufacturer is "Pro Ebiz LLC". You have to download their Windows Update from there apparently.. But that didn't really help. I just had to select to "manually install the driver", then point the install to C:\. You will get a security warning about installing the driver, but go ahead and do it. The device works great!!! Thanks a lot!
1563667
It came with Windows installed, and also a generic disc. However, after about two months, I got a message that the Windows was not authentic. The disc would not re-install. I contacted tech support and they walked me through it remotely. It works fine now with "authenticated" Windows.
1232258
You have to be running windows 95 or greater. It is a full program not an updater and has a full license and key. Hope this helps.
76227
could be. I'm using consumer preview. is it still possible to download the developers's version? I'd hate to go back to windows 7.
414237
I don't know why you can't install it; I've had no trouble and I have Windows 7, too. I have the 64-bit version. I don't know if that makes a difference, but mine runs very well.
1931557
Try downloading the program directly from Bitdefender's website. The CD key included will work for either installation method.