password problems

i am new to avast so everything is new to me…i am having trouble with opening up my system to run a scan on my computer it is telling me that i have to enter a password but i have not entered a password on the system is there anyway to fix this problem???

Does anyone else have access to this computer, if so it is possible they could have set one.

Other than that the only way round it (easiest) is to uninstall and reinstall.

i purchased the system online and have not recived the disc… how would i go about uninstalling it and reinstalling it??

There is no disk. You need to download it again.
Are you talking about a password or a license file?

i have the license file…so i need to uninstall it and download it again?? this is the only anitvirus i have on my computer will that put me a risk?? and can i still can use the same license number again??

1: Yes if you don’t know the pass…

2: Create a bookmark in your browser to the Avast! download you need, then go directly there after you uninstall, this will make any risk little to none.

3: Yes, the original license should still work.
edit: or maybe not? That might depend on which Avast! you have.

Turn off the Internet while installing/uninstalling.

Yes, if it is still valid.


It is best and more secure to download what is needed before doing anything else.

Then, go off line, uninstall the present version of avast, and then install the new download of avast.