Microsoft's Classic Outlook client has recently been causing significant headaches for users, with reports surfacing since late 2024 about mysterious spikes in CPU usage that degrade system performance markedly. The issue, now acknowledged by Microsoft, sees the application consuming between 30...
battery drain
cpu spikes
cpu usage
email client
email client problems
email productivity
enterprise it
it management
it support
legacy software
legacy software issues
microsoft office
microsoft outlook
microsoft support
migrationtonewoutlook
office 365
outlook crashes
outlookmigrationoutlook performance
outlook troubleshooting
performance issues
performance optimization
power consumption
security risks
software bugs
software complexity
software migration
software patches
software stability
software troubleshooting
software updates
system resource management
system responsiveness
update channel risks
update issues
update rollback
user frustration
user productivity
windows 10
windows 11
workplace it
Microsoft's classic Outlook client has recently become the center of frustration for many users due to a CPU usage spike bug that causes the application to consume disproportionately high system resources, locking up computers and draining power. This issue, which has been officially confirmed...
application performance
cpu usage
device overheating
enterprise it
enterprise it solutions
it solutions
it support
it support tips
legacy outlook
legacy software
legacy vs modern outlook
microsoft outlook
microsoft patches
microsoft updates
migrationtonewoutlook
office deployment
office suite
office update channels
office updates
outlook bug
outlook bug 2025
outlook bugs
outlook classic client
outlook cpu spike
outlookmigrationoutlook performance issues
outlook security risks
outlook troubleshooting
outlook update strategy
outlook versions
outlook workaround
performance bug
performance issues
power consumption
resource hogging
resource management
server troubleshooting
software bugs
software stability
system performance
system slowdowns
update channels
user migration
windows 10
windows 11
workarounds