Microsoft has released a list of software that may be blocked or disabled during the Windows 8 to Windows 8.1 upgrade process. The compatibility update improves the web and media upgrade experience when you upgrade to the latest version of Windows 8.1 and Windows Server 2012 R2. Additionally, this update offers the latest compatibility status of the applications, devices, and drivers that are already installed on your computer.
When you upgrade to the latest Windows 8.1, several actions may get triggered in relation to a select bunch of software which may be installed on your computer.
- Upgrade block. You may have to uninstall the particular software to proceed with the upgrade process.
- Hard block. You will not be able to run the application, after the upgrade is completed, if a hard block has been placed on the application.
- Soft block. If a soft block is placed, the primary function of an application may not work or may cause application instability.
- Driver block. This may block an existing driver on your computer when you upgrade
- Block upgrade can reinstall. In this case, o continue the upgrade, you must uninstall the application or driver. Yo can reinstall later on.
- Reinstall after upgrade. This allows the upgrade process to complete successfully. A reinstall may be required.
Microsoft has also released a list of software that may be affected during the behavior.
Software like SuperNova, Searchqu Toolbar, ZoneAlarm, Expression Studio, Visual Studio may change behavior during or after the upgrade process.
McAfee AV Products, Trend Micro Titanium, Panda Security, Outpost Antivirus Pro, Outpost Security Suite Pro are some of the antivirus software that may get disabled during the Windows 8 to Windows 8.1 upgrade.
For complete details check out KB2882342.