FAQ
TL;DR: Fix CIS update/uninstall issues fast: use Comodo’s official Uninstaller v2003—“You might be interested in this tool.” [Elektroda, dt1, post #17026280]
Why it matters: This FAQ helps Windows users quickly resolve Comodo Internet Security 10.1 update and uninstall problems without a full OS reinstall.
Quick Facts
- Official removal utility: use Comodo Uninstaller v2003 when Control Panel leaves remnants; run as Administrator. [Elektroda, dt1, post #17026280]
- Rising SMART C7 (CRC errors) points to SATA cable/connector issues; reseat or replace and recheck. [Elektroda, dt1, post #17054395]
- Post-fix stability observed: C7 RAW value stayed constant from Feb 22–26; CIS updates normalized. [Elektroda, Morann, post #17066659]
- Antivirus often checks signatures frequently even if you set weekly scheduling. [Elektroda, dt1, post #17066666]
- Troubleshooting may show odd database numbering; focus on whether updates then succeed. [Elektroda, Morann, post #17053485]
How do I completely uninstall Comodo Internet Security when Control Panel removal fails?
Use Comodo’s official Uninstaller v2003 to remove leftovers, then reboot and reinstall CIS. Run it as Administrator. This tool targets components that the Control Panel can miss and helps restore clean updates and installs. [Elektroda, dt1, post #17026280]
Why did CIS stop updating its virus database on my PC?
A flaky disk link can corrupt downloads. “Comodo is probably not the problem, it is just feeling the effects of the actual problem.” Check SMART C7 RAW; if it rises, reseat or replace the SATA data cable. The value should stop increasing once the connection is correct. [Elektroda, dt1, post #17054395]
How can I check if my drive connection is causing update errors?
Use CrystalDiskInfo to watch SMART.
- Open CrystalDiskInfo and locate attribute C7 (UltraDMA CRC Error Count).
- Note the RAW value and check it later.
- If it increases, reseat or replace the SATA cable and keep monitoring. [Elektroda, dt1, post #17051960]
The database version looked lower after an update. Should I worry?
Minor anomalies can appear during repair. If updates resume consistently afterward and the antivirus checks often, there’s no cause for alarm. Focus on stable operation rather than transient numbering. [Elektroda, dt1, post #17066666]
Why is Comodo updating daily even though I set checks to every 7 days?
In this case, the user set seven days, yet daily checks still occurred. After fixing the disk connection, updates continued normally. This behavior did not indicate a persistent problem once the link stabilized. [Elektroda, Morann, post #17066659]
I get a black screen asking to check the disk/DVD connection. Is it related?
That message points to device connection issues. In this thread, such prompts coincided with update troubles. Address storage and optical drive cabling first, then retest updates. [Elektroda, Morann, post #17051396]
After reseating the cable, what proves the fix worked?
Confirm the SMART C7 RAW value stops increasing. Here, it remained constant from Feb 22–26, and Comodo updated normally. Stability over multiple days signals a healthy link and successful remediation. [Elektroda, Morann, post #17066659]
Is Comodo the root cause of these update failures?
Unlikely in this scenario. “Comodo is probably not the problem, it is just feeling the effects of the actual problem.” Fix the storage link and retest before replacing software. [Elektroda, dt1, post #17054395]
Will reinstalling Windows fix Comodo update problems?
It did in this case. After a system reinstall, Comodo worked for several days, with only occasional unknown log entries. Consider it a reset if other steps don’t resolve issues. [Elektroda, Morann, post #17048849]
What free antivirus and firewall combo should I use instead of Comodo?
Expect many opinions and little consensus. “Many people will praise one antivirus they use.” Check independent tests, but be mindful of potential bias. Pick one that runs smoothly on your system. [Elektroda, dt1, post #17027184]
Does the SMART C7 counter ever decrease after I fix the cable?
No. It won’t decrement. Aim for the RAW value to stop rising. “The value stamped on the counter will not decrease.” Track it over time to verify stability. [Elektroda, dt1, post #17054395]
Is CrystalDiskInfo portable, or should I install it?
CrystalDiskInfo offers portable and installer builds. Either can read SMART attributes, so choose the one you prefer. Use portable if you want zero-install diagnostics. [CrystalDiskInfo]
How do I cleanly reinstall Comodo after fixing the hardware?
- Run the Official Comodo Uninstaller v2003 as Administrator.
- Reboot to clear drivers and services.
- Install the latest CIS and run an immediate database update. [Elektroda, dt1, post #17026280]
What if the C7 RAW value keeps increasing after replacing the cable?
Re-seat the connector and try a new SATA cable, then keep checking. “If everything is correct, the RAW value will remain unchanged after some time.” Persistent growth suggests the link still isn’t stable. [Elektroda, dt1, post #17054395]