how do I authorize my computer to install apps?
Open iTunes, in the upper left edge click on "Store", "Authorize Computer"
Just follow the prompts, you are authorized 5 computers per account and sometimes when you update software on iPhone or Computer it does something to your account. Just do the above and you should be good to go.
I had the same problem and none of the solutions I googled worked. I solved it for me by copying the apps with the finder (you can find them in <user name>/music/itunes/mobile applications) to another mac. If you open it there, iTunes will put them into the correct folder and you can sync your apps again. So I guess the problem lies with iTunes (8.1.1) on my laptop. Now I'll have to figure out how to reinstall iTunes on my laptop ...Hey guys, I'm having this same problem. I tried de-auth and re-auth my computer and still no luck. I also restored my phone to no luck.
Anyone else find a solution?
hi i have a simarler problem. i need to use a previos version of a software so i downloaded it from a third party web site. itunes wont let me install it because its not autherized. is their a way i can autherise it. thank you. pleasse reply asap
hi guys! need help, why my itunes wont sync my other apps that were previously accepted by itunes before on my other laptops (windows). i already authorized & de-authorized my new laptop (windows 7) and de-authorized all my previous laptops. but still i get the message from itunes that the app im installing on my iphone4 is not accepted as the laptop is not authorized. pls help!!