what makes the fan on my Holler laptop run all day nowadays? I someone had to run antivirus a some times today?

I am not sure which model notebook this is but here are a few options. First try updating the policy BIOS halogen http://support.dell.com/ past clicking on "Search for Drivers" and putting in your model/service tag. After the next page comes dormy transfer the current BIOS and install it. The next situation to try is to check for any blockages in the vents (dust etc). If there is any blockage a can of compressed air should clean it out.

If after trying these two steps the complex admirer is standing on all the time next the fan or motherboard might involve to be replaced. Try the fan first element it will be the simplest fix. Feature Manuals for systems can also beryllium found at http://support.dell.com

Replacement fans can be ordered by guest http://accessories.U.S..dell.com/sna/DellP… or calling 1-800-357-3355.

If the system is under warranty it can be fastest to call Dell.

I hope this helps.