Trouble with installation? Need your license again? Contact our Technical Support. Or, to chat with other avast! users, visit our forum.
Business hours:
Monday-Friday 9:00-21:00 (9am-9pm)
Central-European Time Zone
You can also talk to a local avast! representative about your business needs.
If you’ve encountered a suspicious file, please send it to our Virus Lab for analysis.
AVAST Software a.s.
Trianon Office Building
Budejovicka 1518/13a
140 00, Prague 4
Czech Republic
Phone: 00 420 274 005 777
Fax: 00 420 274 005 888
Registration Number: 27636917
VAT Number: CZ27636917
Registered in the Commercial Register, administered by the Municipal court in Prague, section B, file number 11402
AVAST Software, Inc.
255 Shoreline Drive, Suite 515
Redwood City, CA 94065
USA
AVAST Software Deutschland GmbH
Otto-Lilienthal-Str.4
88046 Friedrichshafen
Germany
Phone: 00 49 (0)7541-9530490
AVAST Software Österreich GmbH
Rosenauerstr. 50
4040 Linz
Austria
