saHi
Subject1157
Hope you are doing well. I am Rattan from Dell Technical Support. In regards to your Laptop becoming slow after the hard drive replacement
Could you let me know if you have replaced the HDD with the same capacity or if you have increased the size and also the ram on your computer .
Also windows 7 will automatically load certain drivers. Make sure you have installed all the required drivers
Dell™ Notebook System Software
Intel® Mobile Chipset Driver
Intel® SATA AHCI
Intel® HD Graphics Controller
Network Adapters
Bluetooth™ Driver and Stack
IDT® Audio
Dell™ Touch Pad
You would be able to find these drivers online on support.dell.com
if you have installed all the drivers, I would request you to go to control panel > windows update and check if there are any windows update. If so, please update all required updates and check.
After that if the computer still gives problems and slow, please do let me know and let's see how we can go from there
#iwork4Dell
Regards
Rattan K Kanna
Dell Technical Support