You can't have a problem free OS, that's part of the fun or nature of the beast. I can only suggest the following:
1) Support for 8.0 will be less or none because of 8.1
2) If you have 8.0 now, then 8.1 is free for you
3) Image your current restore/recovery partition using the OS -OR- do step 4
4) if you haven't yet, create the restore/recovery discs/flash drive(if applicable) that HP offers(in manual)
5) 8.1 is better, if you like 8.0, go for it but do step 6
6) Create the win 8.0 restore/recovery discs of your current setup
*HINT* If you're lucky you may have a Seagate or WD HD installed, if YES, then get the support s/w from WD or Seagate. You want the Acronis version they supply(free, but limited) in order image or backup under Acronis procedures. Install and follow instructions.
You may want to have a ext. backup HD, it's aplus to have and more it if you have issues later. As always don't count on anything as backup just once, do have 3 backups in some media like CD/DVD/BD or HD/Flash if anything at least the critical data you want like pictures, docs, etc..
tada -----Willy 