Avast Pro - Unable to run Update on XP

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My Avast pro will not update. I have tried several times and it sits there, for several hours if allowed. I have an old operating system, XP.

It shows File downloaded: prod-pgm.vpx and that's where if freezes up.

Any idea what would be keeping this from updating?

[Asyn]

- Which version of Avast Pro..?
- OS..? (32/64 Bit..? - which SP/Build..?)
- Other security related software installed..?
- Which AV(s) did you use before Avast..?

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Version 180202-4

I really am not sure about the OS question. It's Windows XP, 2002 version (yes, I know very outdated and old).
I had ransomware on this computer and the person who fixed it I believe put a 14 day trial of Malware Pro on which expires tomorrow.
I've only used Avast, first the free then last year updated to Pro. Never had an issue till now.

[Asyn]

1. Version 180202-4
2. I really am not sure about the OS question. It's Windows XP, 2002 version (yes, I know very outdated and old).
3. I had ransomware on this computer and the person who fixed it I believe put a 14 day trial of Malware Pro on which expires tomorrow.

1. That's the VPS version, which program version of Avast Pro..?
2. Well, is SP3 installed..? Does your CPU support SSE2..?
3. Regarding Avast & Malwarebytes, see: https://forums.malwarebytes.com/topic/200324-exclusions-for-avast-users/