is it definitely compatible with windows 8.1
1500833
It has worked with my Windows 8.1. I don't know whether it is finicky about the age of the computer, since mine is only a year old.
700498
Yes, it is compatible with Windows 8 and 8.1. I have been using it with 8.1 64bit. Sorry, I do not know the copy resolution but the copies are fine.
1148789
I had Windows 8 and it worked perfectly. Then I downloaded Windows 8,1 and it still worked like a charm.
640117
It works extremely well in Windows 7, but I have no experience with Windows 8.1. I suggest you check out the specs on line before you buy it.
513219
Yes, I have it running on Windows 8 and it should work just fine on Windows 8.1 but I have not actually tried it yet.
2039425
I have not used it with Windows 8.1.I am using it with Windows 7 and it works perfect.
1308199
Yes, I have Windows 8.1 and it works fine. It automatically installed drivers, no hassle.
1348467
Yes, it will work with Windows 8.1, I have tried it on three different Windows 8.1 systems (Lenovo yoga, Surface Pro and Asus) and haven't had any issues.
984067
Yes, then you can update it to Windows 8.1 It is a little complicated to use but I love it!
2004334
Yes I am using it with Windows 8.1. Just make sure to download the software from Microsoft after installing so it works right.
1108030
It works very well with windows 8.1 Im not familiar with the other system you mentioned.
665226
Yes, it is fully compatible with Windows 8. http://www.webroot.com/us/en/home/products/complete
826531
Yes it will work with windows 8.1 the drivers are included but you might just want to go to the asus website to make sure they are up to date.
2087514
Yes, I am using it with Windows 8.1, but it also worked with the original Window 8.0
1990721
I am not sure about that particular piece of hardware but it definitely is compatible with Windows 8 - that is what I have been using it on for months now.
625213
I have Windows 8.1 and it works fine. Have had this scanner for several years and it is amazing.
2112803
I know its compatible with windows 8 but I am not to sure about the upgrade to win 8.1 64