Extracting SFRs when launching winIDEA

When launching winIDEA, Special Function Registers (SFRs) are expanded to a dedicated SFR location on your computer. If winIDEA detects that the SFR database is corrupt, modified, missing, or does not match the winIDEA version, it restores it.

Note that the SFR database could get corrupt if either:

• You are using a tool (e.g. CCleaner, PrivaZer ...) that cleans that folder on Windows start
• You were running a different winIDEA version before

More resources in winIDEA Help

• SFRs Database