Don't know about VBox, I've never run, perhaps others who have will chime in here. The one thing I can tell you, is that if you continue to run XP in any flavor, whether in a VM environment or not, you should NEVER, and I mean NEVER, attempt to use that computer for any kind of online transaction such as doing online banking or use of any government site such as DMV, Social Security, Medicare, etc. nor for using it to perform any kind of online purchases using Credit Cards.

Just because you update that XP to 2014; realize that the Hackers have had 3 years plus now to identify hundreds of security weaknesses in XP, and with no releases by Microsoft since 2014, there are more holes in it than a Block of Swiss Cheese; you are at great risk doing that.

Unless you know what you are doing, and even then I've got Customers who are so-called Computer experts, who insist on using their 10-year-old-plus XP machines to do financial transactions on the Internet, and when they get Hacked and their bank accounts cleaned out, they want to know how it was done. Talk about trying to fix the gate after the horse got out of the barn!!
If you are doing web design, web server or web-client testing or app testing with this setup, that's fine. Wanted you to be aware of that. I completely stopped assisting
ANY customers who bring me their XP machines for over 1 year now, and so have just about all my colleagues due to the liability of fixing an XP computer that gets used by the customer, or their family members, or a person they resell that computer to--and they decide to use it for financial transactions, and it will come back to bite me or anyone else who does that repair. I get asked about 2-3 times a month to do this, still, and I refuse in every instance.

What you do is up to you, but unless you are doing some kind of testing, you may not be aware of this risk. And yes, this includes XP in VM mode, it's no longer secure if you've read that somewhere on the net.
Best of luck,
<<BIGBEARJEDI>>