About 2 months ago, I upgraded my computer (an HP Pavilion model P7-1154) APU processor from an A6-3600 with Radeon HD 6530D to an A8-3870K w/ Radeon HD 6550 (this was literally the highest my motherboard could upgrade to). It was not on HP's list of "compatible upgrades", but the socket type was correct and I don't trust HP's website because the last time I got a BIOS update from their website, it rendered my computer inoperable and I had to get the motherboard replaced. Needless to say, I decided to give it a shot since it fit the correct socket, and I had to upgrade my processing speed to at least 3.0 to get some (low end) recording equipment to work.
I looked up how to install the new APU and made sure I was prepared. I installed the APU without any problems, closed it up and turned it on. It took a while, but eventually computer recognized that there was new hardware and installed some stock display drivers. Then I ran the Catalyst Suite and installed the latest drivers. After that, everything was smooth sailing. It seemed to be working faster and better than the A6, as to be expected, and my recording equipment was working. Then a few weeks passed and things started acting up. At first, Microsoft products like Skype wouldn't run, or uninstall. In fact, all attempts to perform a re-installation (including downloading the setup.exe file would be set as a background task with 0% of the CPU allocated to it. I decided to run CCleaner and found a ton of corrupted registry keys. I cleaned them up and everything seemed fine. Then Zune wouldn't work. Checked for corrupt registry and there they were. All the while, things seemed to be slowing down. Multitasking on the internet became more labored as something as simple as moving a tab to open a second window while watching Netflix (something done with ease with the A6) would nearly crash the web browser (FireFox). Even when I hit the Windows icon in order to shut down or look for a program, it will take 3-5 seconds for it to respond (if it does).
I have looked up my drivers and while the display drivers are up-to-date, the processor drivers seem out of date to me. They date back to 4/21/2009 which sounds like stock drivers from the factory. Windows says that they are up-to-date, but Windows also tells me to install graphics drivers from 2011. So my question is: What is causing registry keys to become corrupted and what is slowing down my computer so much? Did I install the APU correctly, by which I mean download the drivers AFTER installation of the APU? Are my Processor drivers out of date and,if so, will downloading the Chipset drivers for the APU help?
Here are the specs:
HP Pavilion Model P7-1154
Windows 10 Home Edition 64-bit
AMD A8-3870k w/ Radeon 6550D