Cannot attach a file to outgoing message - a blank attach file(s) window hangs - problem occurred after MS cumulative and NET update to windows10 version 1809
Thunderbird 60.9.0 (32bit). Cannot attach a file to outgoing message. A blank attach file(s) window hangs after attach button selected. Problem occurred after MS cumulative and NET update to windows10 version 1809 (KB4512192 and KB4512534). Still occurs in Thunderbird safe mode. Equipment: Gigabyte Technology Co., Ltd. System Model Z97M-D3H, System Type x64-based PC using Microsoft Windows 10 Pro Version 10.0.17763 Build 17763. Grateful for any help.....
Chosen solution
SOLVED. Many thanks sf, your suggestion was spot on. The attach button did work in Windows Safe mode and, in addition, on return to Windows normal mode, the problem had disappeared. (I don't know how the offending start up programme was removed.....). Very grateful for your response and the speed. artanne
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Does the same problem occur in Windows safe mode? If you can attach files in that case, it suggests there's a startup program blocking the operation, such as an AV program scanning outgoing mail.
Chosen Solution
SOLVED. Many thanks sf, your suggestion was spot on. The attach button did work in Windows Safe mode and, in addition, on return to Windows normal mode, the problem had disappeared. (I don't know how the offending start up programme was removed.....). Very grateful for your response and the speed. artanne
What may have happened is that during the restarts between safe and normal Windows mode, a startup program such as AV performed an update that made it compatible with TB. In any case, to avoid future issues like this, it's a standard recommendation to not allow AV programs to scan the TB profile folder or SSL connections. The real-time background AV scanning is sufficient.
Thanks sf for the additional information - will adjust the AV accordingly. regards artanne