About a week ago, Microsoft confirmed that some users of the driver’s older Realtek sound card device would be suspended from updating Windows 10 v1909. Now, Microsoft has announced again that PCs with older AVG (v19.5 or lower) and Avast antivirus software (v19.5 or lower) will also be temporarily suspended. If the upgrade is forced, Microsoft says it will cause unnecessary trouble.
Currently, both Avast and AVG have published support articles on how to upgrade.
In fact, the simplest way is to temporarily uninstall after installation, of course, the rope does not update Win10 v1909 is no big deal.