What Photoshop? What system? What specific errors/ issues? You need to be more specific.
The same problem I have at the moment. I installed CS5 on my new laptop with windows 8.1. After the updates are downloaded I get the message that there is an error due to a faul during the download, try again later. So I did the last few days. I never had this problem with previous installs under win 7.
Sorry, answer is simpel; download the individual updates at the Adobe site and install them. It warks fine with me.
Probably the hi security in w8.1 that wo'nt let you install downloaded files.