installer is unable to initialize

Avast Free Antivirus / Premium Security
1

when i try to install avast antivirus, i’m getting the message: The installer is unable to initialize early avast! self defense with error 0x0000001f! aborting! Please help.

2
  • Which avast!..?? (Free/Pro/IS/Premier)
  • Which version…??
  • OS…?? (32/64 Bit…? - which SP…?)
  • Other security related software installed…??
  • Which AV(s) did you use before avast!..??
3

Free version using windows vista.

4

Please also answer the other questions.

5

32 bit system. No other A/V just windows defender.

6

Which AV(s) did you use before avast!..??