Manually deleting things like you did isn't a good idea. Moreover, you don't say what you deleted ("the files"). Explorer acting up can be some add-on (shell extension), unless - as you think - it's related to what you deleted.
What I would do:
- system restore back to before this started
- scan the system using 2 different cd based antivirus tools
- run system file checker, as described in http://support.microsoft.com/kb/929833
If that doesn't help, it might be time to go back to factory conditions.
Hello everyone. I'm not sure how this happened but explorer.exe is using over 4,000,000 K memory and randomly spikes my cpu (usually from 25-65%). The memory slowly builds up to that point and falls then comes up again (currently at about 2,000,000 K). There are also multiple instances of this process (one is more normal size), though both come from the same location in the Windows folder so it appears they are both legit. I recently installed all important windows updates (after this started) and restarted my computer twice. Earlier today I had the same issue except with iexplore.exe. I kept ending process from task manager, and it kept coming back. Since I don't use IE (chrome xD), I decided to delete the files (after going through getting permissions from trusted installer funfunfun). Then this started up. I'm guessing manually deleting IE caused an issue, but I think the actual problem is a virus. I have an Inspiron 5720 (8 GB ram, I7 2.1 GHz processor, Windows 7 Home Premium 64-bit). Please help if you can sorry for the info blob. If nobody responds soon I'll be on tomorrow to run any tests/give more info if need be. Thank you for your time