After uninstalling MSE, I used ccleaner to clean up some registry along with the suggested Microsoft fix-it for complete MSE uninstallation. After the reboot, my computer started a bit slower than usual so I checked the event viewer. I started getting event viewer errors and warnings relating to Event ID 3036, gatherer and various other errors about search. The majority of them were 3036 though. There was also an ESSENT error (eventID 455, logging/recovery) ---> Windows (4024) Windows: Error -1811 occurred while opening logfile C:\ProgramData\Microsoft\Search\Data\Applications\Windows\MSS00736.log.
I'm thinking about rebuilding my index but I've never done it so I'm not sure what will happen/how I should proceed. Thanks in advance.
Edit 1 - Also I was using the Take Ownership script in order to remove the MSE folder in ProgramData as MSE was causing issues but I'm not sure if this contributed to the search errors.