The last few weeks my Mozilla Thundebird V.52.2.1 now has been loading very slowly and erratically. It seems to be having a tough time starting up and I usually need to stop the process several times and eventually it might load up properly. This is very erratic... watching the taskmaster the program seems to access disk which increases then decreases at which point CPU starts to increase to about 30; the program only starts at near 30 so if it is having difficulty getting up there stop the app and restart.
When I start the Thunderbird app various process IDs start, it seems to vary each time. If it loads I usually get to a main page that does not have my emails folders on the side with emails in the center in a list. I do not know if my Avast Antivirus is conflicting but I try disabling the shields for 10 minutes while I try to start Thunderbird. I do not know if this helps.
I have uninstalled Thunderbird several times with Revo Uninstaller, yet keeping my files undeleted, I would delete registry points though. The multiple reinstals do not seem to be doing anythings. I sometimes have problems getting my calendar to load and i had to re-add the Thunderbird Lightning extension. Calendar does not seem to be loading now nor the program with the emails in the list.. more and more recently I have found it difficult to click on items as if I do so nothing happens so i just have to close the program (my mouse works fine).
I just recently, within the past week, installed a new hard drive as my main one that I have been using has been deteriorating significantly in performance yet it still works. I am now re-installing my Thunderbird onto this new drive. However, for now I have been still booting up from the old drive while I check things out and try to change over.
I have run sfc /scannow to be certain all system files are there and it seems fine. I ran several malware progams Super antispyware, Malwarebytes, ESET online scanner, my AVAST Boot scan,and all seems to be clean. I did find a trojan the other days via Super Anti -spyware free and it found a trojan ImageDocFake which I removed with Avast; I then toggled system restore on ALL drives. There may have been some damage to files (I don't know) so I ran Tweaking.com Windows Repair. I do not think that this is related but I am mentioning this.
If you can provide any advice /guidance in trying to find out why Thunderbird is having difficulty loading I would appreciate that.
Thank you for your assistance.