Windows guides that start with the symptom.
Pick what you are seeing. Each guide names the check to run, the evidence it produces and what it deliberately leaves untouched.
01 · Support report
Collect a diagnostic report for tech support
Produce one redacted TXT and Markdown file you can attach to a support request.
Open guide ↗ 02 · Application crash logsFind Windows application crash logs
Confirm repeated failures with error, hang, BugCheck and dump evidence.
Open guide ↗
03
Windows is using too much memory
Compare free memory, pagefile use and the heaviest processes.
Open ↗
04
Windows Update may need a restart
Check installed updates, reboot indicators and update services.
Open ↗
05
Disk space is low or disk health is unclear
List physical disk state and volume free space with a warning threshold.
Open ↗
06
Windows Firewall profiles are disabled
Check Domain, Private and Public state with Defender and Secure Boot context.
Open ↗
07
Windows Time service is stopped
Inspect W32Time state, start mode, clock values and configured source.
Open ↗
08
Unexpected default route or proxy
Compare route metrics, gateways, DNS, DHCP and proxy context.
Open ↗
[!] Before attaching a report to a public issue or forum, run it with Privacy Mode and read the file once yourself.