Though at the time, I was a long time user of Commodore Amiga. Most PCs at the time were extraordinarily difficult to configure and keep running. I remember the multi-tasking in Windows 95 being really bad-- explorer.exe getting blocked. Other things that stick out to me were over use of modal dialogs and that lower-right notification tray filling up with animated distracting icons.
Don't get me started on clippy, or DOS, or file system naming conventions. Sure, compared to Windows 3.1 it was bliss-- but other computing platforms were years ahead.