Performance Issues with my Sisters' Laptop

Malwarebytes Anti-Malware
www.malwarebytes.org
Scan Date: 1/1/2015
Scan Time: 3:40:22 PM
Logfile:
Administrator: Yes
Version: 2.00.4.1028
Malware Database: v2015.01.01.06
Rootkit Database: v2014.12.30.01
License: Free
Malware Protection: Disabled
Malicious Website Protection: Disabled
Self-protection: Disabled
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: Cindy
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 500875
Time Elapsed: 46 min, 8 sec
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled
Processes: 0
(No malicious items detected)
Modules: 0
(No malicious items detected)
Registry Keys: 0
(No malicious items detected)
Registry Values: 0
(No malicious items detected)
Registry Data: 0
(No malicious items detected)
Folders: 0
(No malicious items detected)
Files: 5
PUP.Optional.MySearchDial.A, C:\Users\Mariah\AppData\Roaming\Mozilla\Firefox\Profiles\se9kes5f.default\user.js, Good: (), Bad: (user_pref("extensions.mysearchdial.excTlbr", false), ,[7c854e1b235966d0c2ef1ba32ed71be5]
PUP.Optional.MySearchDial.A, C:\Users\Mariah\AppData\Roaming\Mozilla\Firefox\Profiles\se9kes5f.default\user.js, Good: (), Bad: (.instlRef", "");

user_pref("extensions.mysear), ,[53ae81e857256ec8e4cdbb0359ac916f]
PUP.Optional.MySearchDial.A, C:\Users\Mariah\AppData\Roaming\Mozilla\Firefox\Profiles\se9kes5f.default\user.js, Good: (), Bad: (
.instlRef", "");

user_pref("extensions.mysearch), ,[5ca5402937451d19c8e97549be47659b]
PUP.Optional.MySearchDial.A, C:\Users\Mariah\AppData\Roaming\Mozilla\Firefox\Profiles\se9kes5f.default\user.js, Good: (), Bad: (nstlRef", "");

user_pref("extensions.mysearchdial.excTlbr", false);
user_pref("extensions.mysearchdi), ,[be43442597e52313e3ce6856ff066d93]
PUP.Optional.MySearchDial.A, C:\Users\Mariah\AppData\Roaming\Mozilla\Firefox\Profiles\se9kes5f.default\user.js, Good: (), Bad: (al.excTlbr", false);
user_pref("extensions), ,[da27adbc2b51102611a01ca234d1e51b]
Physical Sectors: 0
(No malicious items detected)

(end)

This is what Malwarebytes picked up. I will now run Ccleaner and then Adware Cleaner.

Should I run the free version of Ccleaner or the trial version?

I ran the scan, and it didn't find any integrity violations.

Okay

Okay. Now, I am ready to use AdwCleaner. Can you send me the link?

Thanks Maxie.

Seems to be running better now. Thanks indianacarnie and maxie for your help. I appreciate it.