I get this error every time I try to update anything. I recently bought an upgrade and can’t even use that because of these errors. Avast says everything’s ok, but to me it looks like I haven’t received any definitions since August 2014. Please help me to fix this. I don’t even like thinking that I’m not covered.
- 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…?
Well right now its Avast Free, but I had bought the upgrade to Pro. It won’t even download the new Pro version either.
Current version it says: ffffff-ff but it also says everything’s good.
OS: 64 Bit
The only other security that is used is the windows defender.
I had this pc built for me and it came with Avast. I have had Kaspersky in the past though.
I like Avast because it doesn’t interfere with my gaming.
Thanks for responding 
This forum is for avast SERVER products, not for home products.
You can find the correct forum to post your issue in here:
https://forum.avast.com/index.php?board=2.0
First, be sure to get rid of all remnants of your prior installed AV(s)…!!
→ https://www.avast.com/faq.php?article=AVKB11
Then:
- Download Avast Pro Antivirus: https://files.avast.com/iavs9x/avast_pro_antivirus_setup.exe
- Follow instructions: https://www.avast.com/uninstall-utility (Run this tool for all prior installed Avast versions…!!)
- Reinstall Avast with the downloaded installer from point 1.
- Reboot.
My apologies for being in the wrong place, but thank you for the answer. I will try that right away
OK, report back.
Thank you!! It worked perfectly I really appreciate your help. Danke 
You’re welcome.